Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

December 1927. Mystery-writer Marius Quin has one previous bestseller, endless looming mortgage payments, and no idea how to write his next book. When his childhood friend Lady Isabella Montague invites him to an intimate New Year’s Eve party hosted by a narcissistic actor, Marius seizes upon the distraction. With his perpetually glum Basset hound along for the ride, he navigates the snowy lanes to the opulent estate of Everham Hall. As the celebrations begin, fireworks light up the sky, champagne corks pop, and then the host is murdered…

In the year 1933, an elderly Dr. John Watson is looking back over his life and his time spent with his brilliant friend and master of deduction Sherlock Holmes. He writes in a letter to the listener that he has assembled a list of seven untold adventures that span from his and Sherlock's early years until the time of Sherlock's retirement. Watson explains that he wishes to leave, not only his family, but the public with a final compilation of adventures that he and Sherlock shared while he is still able.

Elizabeth Cage is a child when she discovers that there are things in this world that only she can see. But she doesn't want to see them, and she definitely doesn't want them to see her. What is a curse to Elizabeth is a gift to others - a very valuable gift they want to control. When her husband dies, Elizabeth's world descends into a nightmare. But as she tries to piece her life back together, she discovers that not everything is as it seems.

When Detective Mike West is called to investigate a murder in a Dublin graveyard, suspicion immediately falls on a local woman, Edel Johnson, whose husband disappeared some months before. But then she disappears. Evidence leads West to a small village in Cornwall, but when he arrives, he finds Edel has got there before him. Her explanation seems to make sense, but as West begins to think his suspicions of her are unfounded, she disappears again. Is she guilty? West, fighting an unsuitable attraction, doesn't want to believe it.

New York City, 1919. Lillie Mead mourns the love she lost in the war. But when a wealthy British friend offers her a reporting job across the pond, she hopes accepting will help her rebuild her life. She barely has time to unpack before she’s assigned the scoop of a poisoned socialite’s death. As the clues take a turn for the scandalous, Lillie unearths shocking skeletons in the victim’s closet. But she never expected the threads of the beloved woman’s life to weave with hers. Can Lillie expose the truth before her own death makes the front page?

When a beautiful, wealthy student is found dead in her room in Oxford's most prestigious college, Detective Inspector Bridget Hart is called to investigate. The murdered girl appeared to have no enemies, yet was killed in a brutal and bloody assault. Haunted and driven by her own personal tragedy, newly promoted DI Bridget Hart has a lot to prove as she leads her first murder case. Her investigation uncovers a tangled web of lies, lust and ambition, and brings her into conflict with powerful interests.

The sudden death of a pupil in Fleat House at St Stephen’s—a small private boarding school in deepest Norfolk—is a shocking event that the headmaster is very keen to call a tragic accident. But the local police cannot rule out foul play and the case prompts the return of high-flying Detective Inspector Jazmine ‘Jazz’ Hunter to the force. Jazz has her own private reasons for stepping away from her police career in London, and reluctantly agrees to front the investigation as a favour to her old boss.

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

Meet Sukey Reynolds: proud mother, wonderful cook...and police photographer turned amateur detective. Years ago, Sukey was hoping to become a detective, but life took a different turn. Now she’s happy to be involved with the local police force, as long as she still gets to work the occasional murder case....

A golden summer, and six talented teenagers are looking forward to the brightest of futures—until a daredevil game goes horribly wrong, leaving three strangers dead. 18-year-old Megan takes the blame for the crime, leaving her friends to get on with their lives. In return, they each agree to a 'favour', payable on her release from prison. Twenty years later Megan is free. It is payback time. And her friends start disappearing, one by one . . .

Kate Palmer has relocated to Cornwall for a quiet life. Moving into picturesque Lavender Cottage with her sister, Angie, the little village of Lower Tinworthy should be the perfect place for their fresh new start. But within weeks of their arrival, there’s a death in the close-knit community.... A woman is found dead in the village hall, with her own kitchen knife next to the body, covered in blood. Kate, a practice nurse at the local medical center, begins to piece together the clues.

The outcry when Conan Doyle pushed Sherlock Holmes over the Reichenbach Falls and the dismay when Freeling shot Van der Valk are as nothing compared to the chaos that ensues when Lorinda Lucas tries to dispose of Miss Petunia and her siblings, Lily and Marigold. Not only does the lid blow off the fictional village of St. Waldemar Boniface, but the literary colony of Brimful Coffers is shaken to its foundations.

A shocking double-murder scene greets Detective Inspector Philip Brennan when he is called to a flat in Colchester. Two women are viciously cut open and laying spread-eagled, one tied to the bed, one on the floor. The woman on the bed has had her stomach cut into and her unborn child is missing. But this is the third time Phil and his team has seen such an atrocity. Two other pregnant women have been killed in this way and their babies taken from them. No one can imagine what sort of person would want to commit such horrible crimes.

At the intimate house-warming party for her glorious ‘grand design’, Kathleen confides in her best friend, Beth, that she is terrified of one of their close friends but daren’t reveal which one. The guests are a tight-knit group, but Kathleen is convinced one of them is dangerous. The next day Kathleen’s body is found at the foot of a cliff, and Beth must face the sickening truth that she may have been killed by one of their trusted friends. With little help from the police, Beth’s decides to seek answers.

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?