When Sasha receives a call from her old university friend Gabby inviting her to spend Christmas at Gabby’s remote Scottish lake house, Sasha knows she shouldn’t go. Twelve years ago, on Christmas Eve, when Sasha and her five closest friends were celebrating the festive season, something truly horrific happened that would change the course of their friendship forever. Something that meant Sasha hasn’t spoken to any of them since that night.

After the killing of a prominent mob lawyer, NYPD homicide detectives Jacob Jackson and Caitlin Grimes start receive chilling, written “rules” for how to commit the perfect murder. "Rule number one for the perfect murder: Evidence is your enemy. Leave none behind." Jackson (Reid Scott) and Grimes (Cobie Smulders) race to find the killer, setting them on a collision course with the city’s crime underbelly, and a perpetrator who seems happy to toy with them. “Rule number two. No crimes of passion. The perfect murder is always business, never pleasure.”

England, 1914. The world is at war. Captain Hastings, injured and shaken, is invited to Styles Court to recover. It’s a grand old country house - the family home of his old friend - and a perfect haven. Or so it seems. But in the blistering summer heat, trouble is afoot. Simmering tensions are tearing the family apart, and it all comes to a head in the most horrifying way.

Jenny sits in the same seat on the same train every week, seeing familiar faces come and go. Until a chance encounter shatters her world. Sixteen years ago, Jenny survived a traumatic ordeal that left her best friend, Susie, missing and presumed dead. The world has its theories about what happened to Susie Patterson, and one of those theories points the finger at Jenny. Now she lives a quiet life, volunteering at a crisis helpline while trying to deal with her own anxiety and the true crime fans obsessed with finding her missing friend.

Lowen Ashleigh is a struggling writer on the brink of financial ruin when she accepts the job offer of a lifetime. Jeremy Crawford, husband of best-selling author Verity Crawford, has hired Lowen to complete the remaining books in a successful series his injured wife is unable to finish. Lowen arrives at the Crawford home, ready to sort through years of Verity's notes and outlines, hoping to find enough material to get her started. What Lowen doesn't expect to uncover in the chaotic office is an unfinished autobiography Verity never intended for anyone to read.

Kidnappers grabbed Jenna in broad daylight, right in front of her children and their horrified classmates. Her family was issued an insane ransom demand: $25 million in cash and jewels, payable by the end of the school day, otherwise they’ll never see her again. As Jenna’s mother scrambles to gather the money, detectives Mo Butler and George Ortega follow the trail of the kidnappers, which will lead them through a sordid landscape of jealous lovers, broken dreamers, and twisted schemers. But every second counts, and there’s one thing Jenna Wade doesn’t have: very much time.

When Heather McKinley dreamed of becoming a doctor, she imagined curing sick kids and sporting pink stethoscopes. She never anticipated the sleepless nights, grueling exams, and endless labs. And she certainly never knew that her medical school earned the nickname Dead Med thanks to the tragic history of students overdosing on illegal drugs. But Heather would never consider doing anything like that. That is, until her longtime boyfriend dumps her, she finds herself failing anatomy, and her world starts to crumble.

Cassie thinks she has met the perfect man. Joel is sweet, handsome, romantic, and best of all, he’s crazy about Cassie. She thinks she’s found the guy she’ll spend the rest of her life with. Have children with. Grow old with. Yes, she knows about his perfect ex-girlfriend, Francesca. The beautiful, brilliant chef, beloved by all his friends. But she thinks Francesca is out of the picture. She thinks Francesca is gone for good. Think again, Cassie.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.

Everyone thinks my husband is dead. Just like we planned. Eleven years ago, my husband disappeared. Eleven long hard years I waited, my heart breaking for our son, who didn’t know his father was coming back. Today, my hands shake as I try to understand what I’ve just learned: my husband has a new wife. This wasn’t part of our plan. Eleven years ago, my husband made a terrible mistake. I sacrificed everything to help him fix it. But now he’s put our son and me in danger again. We had a plan. He broke the rules. But who will pay the price?

Ruth-Ann Baker is a college dropout, a bartender—and an amateur detective who just can’t stay away from true crime. Nineteen years ago, her childhood friend was murdered by suspected serial killer Ethan Oswald. Still tormented by the case, Ruth can’t help but think of the long-dead Oswald when another young girl goes missing from the same town. And when she uncovers startling new evidence that suggests Oswald did not act alone, she is determined to find his deadly partner in crime.

A few surgeries and some intensive training later, and Sal Cupertine is gone, having disappeared into the identity of Rabbi David Cohen. Leading his growing congregation in Las Vegas, overseeing the population and the temple and the new cemetery, Rabbi Cohen feels his wicked past slipping away from him, surprising even himself as he spouts quotes from the Torah. But the Mafia isn't quite done with him.

When Tuppence was born, I thought I was complete. Even when my marriage to Leon began to falter, at least I had my baby girl to look after. Adults have problems all the time, but children have a way of making them seem so insignificant. But then Tuppence goes missing and I realize how my life has been teetering on the brink for so long. Now it's just me and my husband again, the two of us and all our problems, and we're forced to work together as a team to get our beloved daughter back.

Carly has a complicated personal life. She's been the mistress of famous artist Nelson Carter for the past five years. Now Nelson has finally left his wife Amanda, but instead of committing to Carly, he's indulging in a series of one-night stands. She has had enough and is about to leave him when a vicious attack on Amanda means Carly has to put her plans on hold to care for Nelson's traumatized ten-year-old son, Jake. Only when Amanda is released from the hospital can Carly finally move on with her life. But then a frightened Jake confides a disturbing secret—"That's not my mom".

For Glory Edim, that "friend of my mind" is books. Edim, the daughter of Nigerian immigrants growing up in Virginia, started the popular Well-Read Black Girl book club at age 30, but her love of books stretches far back: to public libraries alongside her little brothers after elementary school while her mother was working; to high school libraries where she discovered books she wasn't being taught in class; to dorm rooms and airplanes and subway rides—and, eventually, to a community of half a million other listeners.

On the cusp of forty, Justine Bailen, better known as Jo, works for an all-female detective agency based in Tucson, Arizona. While staking out a cheating spouse, she learns that her long-estranged best friend from childhood, Rose, is missing, and that Rose’s mother wants to hire Jo to find her. This case is all kinds of wrong for Jo, but she has no choice but to head back to her hometown, an hour north and a world away from Tucson.

Cordelia Black loves exactly three things: her chosen family, her hairdresser (worth every penny plus tip), and killing bad men. By day she's an ambitious pharma rep with a flawless reputation and designer wardrobe. By night, she culls South Louisiana of unscrupulous men—monsters who think they've evaded justice, until they meet her. Sure, the evening news may have started throwing around phrases like serial killer, but Cordelia knows that's absurd. But when Cordelia discovers a flaw in her perfectly designed system for eliminating monsters, pressure heightens.

Charlie Webb is a third rate lawyer who graduated from a third rate law-school and, because he couldn’t get hired by any of the major law firms, has opened his own law firm, where he gets by handling cases for dubious associates from his youth and some court appointed cases. Described as “a leaky boat floating down the stream of life,” Charlie has led unremarkable life, personally and professionally. Until he’s appointed to be the attorney for a decidedly crackpot artist who calls himself Guido Sabatini (born Lawrence Weiss).

On a sunny morning in June, Margaret Carpenter wakes up to find a new iPhone on her doorstep. She switches it on to find a text from her best friend, Charity Atwater. The problem is, Charity’s been missing for over a month. Most people in town—even the police—think she’s dead. Margaret and Charity have been lifelong friends. They share everything, know the most intimate details about one another…except for the destructive secret hidden from them both. A secret that will trigger a chain of events ending in tragedy, bloodshed, and death. And now Charity wants Margaret to know her story.

To the outside world, Imogen is a marketing dynamo. Her colleagues don’t know that while her high-achieving professional image is real, the happy childhood stories she spins are as fake as her pretend enthusiasm for Christmas. Working 24/7 has always been her solution to surviving the festive season—until burnout leads to a catastrophic blunder.