Many Indigenous people believe that one should never whistle at night. This belief takes many forms: for instance, Native Hawaiians believe it summons the Hukai’po, the spirits of ancient warriors, and Native Mexicans say it calls Lechuza, a witch that can transform into an owl. But what all these legends hold in common is the certainty that whistling at night can cause evil spirits to appear—and even follow you home. These shiver-inducing tales introduce listeners to ghosts, curses, hauntings, monstrous creatures, complex family legacies, desperate deeds, and chilling acts of revenge.

On a freezing night in January 1941, a little Jewish girl is found on the steps of an apartment building in Bucharest. With Romania recently allied with the Nazis, the Jewish population is in grave danger, undergoing increasingly violent persecution. The girl is placed in an orphanage and eventually adopted by a wealthy, childless couple who name her Natalia. As she assimilates into her new life, she all but forgets the parents who were forced to leave her behind. They are even further from her mind when Romania falls under Soviet occupation.

American Josie Anderson and Parisian Arlette LaRue are thrilled to be working in the French resistance, stealing so many Nazi secrets that they become known as the Golden Doves, renowned across France and hunted by the Gestapo. Their courage will cost them everything. When they are finally arrested and taken to the Ravensbrück concentration camp, along with their loved ones, a reclusive Nazi doctor does unspeakable things to Josie’s mother, a celebrated Jewish singer who joined her daughter in Paris when the world seemed bright. And Arlette’s son is stolen from her, never to be seen again.

Twenty-five years after the end of the war, Noah Ainsworth is still preoccupied with those perilous, exhilarating years as a British SOE operative in France. A head injury sustained on his final operation has caused frustrating gaps in his memory—in particular about the agent who saved his life during that mission gone wrong, whose real name he never knew, nor whether she even survived the war.

Londoner Madeleine Grant is studying at the Sorbonne in Paris when she marries charismatic French journalist Giles Martin. As they raise their son, Olivier, they hold on to a tenuous promise for the future. Until the thunder of war sets off alarms in France. Staying behind to join the resistance, Giles sends Madeleine and Olivier to the relative safety of England, where Madeleine secures a job teaching French at a secondary school. Yet nowhere is safe. After a devastating twist of fate resulting in the loss of her son, Madeleine accepts a request from the ministry to aid in the war effort.

The remote Irish village of Duneen has known little drama, but when human remains are discovered on an old farm, suspected to be those of Tommy Burke - a former lover of two different inhabitants - the village's dark past begins to unravel. As the frustrated sergeant PJ Collins struggles to solve a genuine case for the first time in his life, he unearths a community's worth of anger and resentments, secrets and regret.

Paris, 1939: Young mothers Elise and Juliette become fast friends the day they meet in the beautiful Bois de Boulogne. Though there is a shadow of war creeping across Europe, neither woman suspects that their lives are about to irrevocably change. When Elise becomes a target of the German occupation, she entrusts Juliette with the most precious thing in her life—her young daughter, playmate to Juliette’s own little girl. But nowhere is safe in war, not even a quiet little bookshop like Juliette’s Librairie des Rêves.

Germany, 1939. A tumbledown farmhouse, on the outskirts of a close-knit village in the heart of the rolling hills of Bavaria. A once happy family home torn apart by Nazi rule. And one young girl who refuses to give up on what she believes in...London, 2018: When 94-year-old Imogen receives a letter addressed to her in neat, unfamiliar handwriting, she notices the postmark is stamped from Germany - and it sends shivers down her spine....

When newlywed Ruby Henderson Benoit arrives in Paris in 1939 with her French husband, Marcel, she imagines strolling arm in arm along the grand boulevards, awash in the golden afternoon light. But war is looming on the horizon, and as France falls to the Nazis, her marriage begins to splinter, too. Charlotte Dacher is 11 when the Germans roll into the French capital, their sinister swastika flags snapping in the breeze. After the Jewish restrictions take effect and Jews are ordered to wear the yellow star, Charlotte can't imagine things getting much worse.

When Marilyn Kleinman is caught making out with the rabbi’s son in front of the whole congregation, her parents ship her off to her great-aunt Ada for the summer. If anyone can save their daughter’s reputation, it’s Philadelphia’s strict premier matchmaker. Either that or Marilyn can kiss college goodbye. To Marilyn’s surprise, Ada’s not the humorless septuagenarian her mother described. Not with that platinum-blonde hair, Hermès scarf, and Cadillac convertible. She’s sharp, straight-talking, takes her job very seriously, and abides by her own rules…mostly.

As the dutiful daughter of a high-ranking Nazi officer, Hetty Heinrich is keen to play her part in the glorious new Thousand Year Reich. But she never imagines that all she believes and knows about her world will come into stark conflict when she encounters Walter, a Jewish friend from the past, who stirs dangerous feelings in her. Confused and conflicted, Hetty doesn’t know whom she can trust and where she can turn to, especially when she discovers that someone has been watching her.

Mary Roberts is an impoverished child living in a council flat in 1950s London. When she and her sister are left at an orphanage by their mother, they don't think their lives can get any worse. Harry Evans is an orphan who finds himself, with Mary and her sister, on board a ship bound for Australia. They're sent to a farm school for children, where abuse and neglect are rife. A journey that will change their lives forever and from which they’ll never return.

Lina Meisel, a retired librarian in Florida, is reading the newspaper one morning when she freezes. Her eyes lock on a photograph of a book she hasn’t seen in 65 years - a book she recognizes as The Book of Lost Names. The accompanying article discusses the looting of libraries by the Nazis across Europe during World War II - an experience Lina remembers well - and the search to reunite people with the texts stolen from them so long ago. The book in the photograph is one of the most fascinating cases.

After being stolen from her wealthy German parents and raised in the unforgiving wilderness of eastern Europe, a young woman finds herself alone in 1941 after her kidnapper dies. Her solitary existence is interrupted, however, when she happens upon a group of Jews fleeing the Nazi terror. Stunned to learn what’s happening in the outside world, she vows to teach the group all she can about surviving in the forest—and in turn, they teach her some surprising lessons about opening her heart after years of isolation.

Berlin, 1930—When a wave of change sweeps a radical political party to power, Sofie von Meyer Rhodes’s academic husband benefits from the ambitions of its newly elected chancellor. Although Sofie and Jürgen do not share the social views growing popular in Hitler’s Germany, Jürgen’s position with its burgeoning rocket program changes their diminishing fortunes for the better. But as Sofie watches helplessly, her beloved Berlin begins to transform, forcing her to consider what they must sacrifice morally for their young family’s security, and what the price for their neutrality will be.

When tragedy forces Delphine Auber, an aspiring writer on the cusp of adulthood, from her home in postwar Paris, she seizes the opportunity to embark on the journey she's long dreamed of: finding the father she has never known. But her quest—spanning from Paris to New York’s Harlem, to Havana and Key West—is complicated by the fact that she believes him to be famed luminary Ernest Hemingway, a man just as elusive as he is iconic. She desperately yearns for his approval, as both a daughter and a writer, convinced that he holds the key to who she's truly meant to be.

Cleo Jaffray was an American. A war in Europe had nothing to do with her. She told herself that right up until the man she loved went missing in Poland and Cleo was forced to turn to the only person who might be able to help—her aunt Daisy, the US Minister to Norway. Daisy Harriman has never shied away from a challenge, be it canvassing for women’s suffrage or driving Red Cross ambulances in WWI, so as only the second woman ambassador, she is determined to prove the naysayers wrong and succeed in her post.

On a freezing night in January 1941, a little Jewish girl is found on the steps of an apartment building in Bucharest. With Romania recently allied with the Nazis, the Jewish population is in grave danger, undergoing increasingly violent persecution. The girl is placed in an orphanage and eventually adopted by a wealthy, childless couple who name her Natalia. As she assimilates into her new life, she all but forgets the parents who were forced to leave her behind. They are even further from her mind when Romania falls under Soviet occupation.

Nestled in the hills of West Virginia lies White Sulphur Springs, home to the Greenbrier Resort. Long a playground for presidents and film stars, the Greenbrier has its own gravitational pull. Over ten decades, four generations of the Zelner family must grapple with their place in its shadow . . . and within their own family.

1940, Italy. Lili and Esti have been best friends since they first met at university. When Esti’s son Theo is born, they become as close as sisters. While a war seethes across borders, life somehow goes on—until Germany invades Italy, and the friends suddenly find themselves in occupied territory. Esti, older and fiercely self-assured, convinces Lili to join the resistance efforts. But when disaster strikes, a critically wounded Esti asks Lili to take a much bigger step: To go on the run with Theo. Protect him while Esti can’t.

Los Alamos, 1943. The US Army has gathered scientists to create the world’s first nuclear weapon. Their families, abruptly moved to the secret desert base with no explanation, have simple orders: Stand by. Make do. Above all, don’t ask questions. Christine, forced to abandon her art restoration business in New York for her husband’s career, struggles to reinvent herself and cope with his increasing aloofness. Gertie, the inquisitive teenage daughter of a German Jewish refugee physicist enlists Christine to help her unravel hidden truths and deal with parents haunted by their past.

1938: She was one of the six sparkling Mitford sisters, known for her stinging quips, stylish dress, and bright green eyes. But Nancy Mitford’s seemingly dazzling life was really one of turmoil: with a perpetually unfaithful and broke husband, two Nazi sympathizer sisters, and her hopes of motherhood dashed forever. With war imminent, Nancy finds respite by taking a job at the Heywood Hill Bookshop in Mayfair, hoping to make ends meet, and discovers a new life.

With the announcement of World War Two and a change that sends shockwaves through her family, Kehinde is forced to put aside her dreams of writing and become the third wife of Mr Ogunjobi. Kehinde makes her peace by selling snacks at a small market. When she gets the chance to assist the leader of the Lagos Women’s Market Association, fighting for the rights the British are trying to take away, Kehinde finally feels useful again. But if her husband finds out he’ll abandon her.

1940 - Stasia always found comfort in the idyllic French countryside where she spent her childhood summers, roaming the gardens of an old chateau and finding inspiration for fairy tales full of bravery and adventure. But these days are much darker, and with Nazis storming across Europe, she soon finds herself one of the most hunted agents of the Resistance. The only safe haven she can think of is Chateau de Montissaire. But she’s about to discover that it just may be the center of her biggest mission yet.

In the summer of 1933, a man named Adolf Hitler is the new and powerful anti-Semitic chancellor of Germany. But in Los Angeles, no-nonsense secretary Liesl Weiss has concerns much closer to home. The Great Depression is tightening its grip, and Liesl is the sole supporter of two children, an opinionated mother, and a troubled brother.

The weatherworn cottage Clachan has always been Jo Wilding’s sanctuary, a blissful escape from her tumultuous home life. From the first summer Rachel invited her to join the Willoughby family in the wilds of Scotland, she fell in love with the sea air, sandy beach and Tristan, Rachel’s older brother… All these years later, Clachan is where their most important occasions and conversations take place, so when Rachel organises a weekend there, Jo never suspects that this weekend will change everything.

1915. In German-occupied Belgium, a tragic loss forces Josephine Descharmes to navigate dangerous new territory. By day it’s compliance, serving German officers at the Hotel Métropole. By night it’s resistance, working with her brothers underground to help Allied soldiers and civilians cross the border into Holland. Both paths put her and her family at great risk. As Josephine struggles to keep her family safe, Arthur, a grief-stricken English soldier trapped behind enemy lines, finds purpose and hope with Josephine and her work.

Dublin, 1969: Maura has just married Dr. Christy Davenport and they look forward to growing their family. But as her husband’s vicious temper emerges, Maura worries that her home might never be safe for a child. Meanwhile, her close friend Bernie, a mother of three, learns the devastating news that if she conceives again, her health complications could prove fatal.

England, 1941: Life has always been cruel to Ethel. Raised in an orphanage by a merciless mistress, she never knew the meaning of love. And now she has fallen for the one man who is forbidden to her - Karl, a German held captive in the local prisoner-of-war camp. He might be the enemy, but he has her heart. When Ethel discovers she’s pregnant, she is labelled a traitor and shunned by all. The love of her life is torn away from her, but she vows to protect their precious daughter. But the unthinkable happens....

Liverpool, 1935: Raised in a strict Catholic family, Viv Byrne knows what’s expected of her: marry a Catholic man from her working-class neighborhood and have his children. However, when she finds herself pregnant after a fling with Joshua Levinson, a Jewish man with dreams of becoming a famous jazz musician, Viv knows that a swift wedding is the only answer. Her only solace is that marrying Joshua will mean escaping her strict mother’s scrutiny. But when Joshua makes a life-changing choice on their wedding day, Viv is forced once again into the arms of her disapproving family.