D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

When the body of Lauren Shaw is discovered laid out on the altar of St Mary the Virgin church in Eastbourne, it sends a chill to the core of those who have lived in the area for a long time. They remember another woman whose slain corpse was placed in the same spot 60 years ago. Dee Doran is as intrigued as the rest but focused on her investigation of the whereabouts of a missing person from the Polish community. But as she starts asking questions, Dee finds the answers all point to the same conclusion - someone is keeping secrets, and they will do whatever it takes to keep them safe.

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

There are two sides to every story: yours and mine, ours and theirs, his and hers. Which means someone is always lying. When a woman is murdered in Blackdown, a quintessentially British village, newsreader Anna Andrews is reluctant to cover the case. Detective Jack Harper is suspicious of her involvement, until he becomes a suspect in his own murder investigation. Someone isn’t telling the truth, and some secrets are worth killing to keep.

When a young man is found gruesomely murdered in a London houseboat, it triggers questions about three women who knew him. Laura is the troubled one-night-stand last seen in the victim’s home. Carla is his grief-stricken aunt, already mourning the recent death of yet another family member. And Miriam is the nosy neighbor clearly keeping secrets from the police. Three women with separate connections to the victim. Three women who are – for different reasons – simmering with resentment. Who are, whether they know it or not, burning to right the wrongs done to them.

Every family has secrets, and on the hottest day of the year, the truth is about to come out. As a tragedy unfolds behind closed doors, the dawn chorus is split by the wail of sirens. And one by one the families who tried so hard to welcome the Wests begin to realise: Hogarth Street will never be the same again.

Gemma Robinson comes into Elliot’s life like a whirlwind, and they marry and settle into his home. When she asks him if her parents can come to stay for a couple of weeks, he is keen to oblige - he just doesn’t quite know what he’s signing up for. The Robinsons arrive with Gemma’s sister, Chloe, a mysterious young woman who refuses to speak or leave her room.

The day after her ninth birthday, Lucie and Blake Sullivan agree, for the very first time, to let their daughter, Grace, make the four-minute walk back home alone from a friend’s house down the street. They joke with friends about hiding behind bushes to ensure she is safe. But the joke turns sour when Grace does not appear. Despite the best efforts of the police and local community, Grace seems to have vanished into thin air. With hope fading fast, Lucie knows she can rely on her husband to support her. That is until the day she makes a shocking discovery....

The doorbell rings, just days after my beloved husband’s sudden death. I don’t recognise the woman on our doorstep, with her blonde highlights, a diamond bracelet identical to my own and a bouncing baby boy in her arms. As I show her inside, I notice her eyes grow wide as she takes in our spacious hallway, and the big squashy sofas that we all used to pile on. She glances at the silver-framed family photos and my little daughter hiding behind my skirts. She looks at me, her blue eyes serious. ‘I’m sorry’ she says. ‘I am your husband’s girlfriend. And this is his son.'

It was supposed to be the perfect reunion: six university friends together again after twenty years. Host Ali finally has the life she always wanted, a career she can be proud of and a wonderful family with her college boyfriend, now husband. But that night her best friend makes an accusation so shocking that nothing will ever be the same again.

Rachel is afraid she may have done something terrible. She's sitting in a room, being asked whether she killed someone. She doesn't understand how her life has changed so completely. When she was younger, heads would turn when she walked into a room. Her children needed her; her husband adored her. But somehow the years wore that all away. She was so busy raising her children, looking after her parents....

Ten years ago he killed my son. Today I married him. Ten years ago my darling son Jesse was murdered and our perfect family was destroyed. My strong, handsome boy, so full of life, became a memory, a photo I carried with me everywhere. But today I’m finally close to finding happiness again. My ash-blonde hair has been curled into ringlets. Carefully placed white flowers frame my delicate features. The small, drab chapel has been prettied up with white satin, and there are tiny red hearts scattered on the small table where I will soon sign the register with my new husband.

It’s 1985, and the disappearance of 10-year-old Lisa Cook shocks the nation. Her best friend, Kirsty, traumatized and fearful, gives evidence that helps to put the Cook family’s lodger behind bars. But what if Kirsty made a mistake? Now, decades later, Kirsty leaves a life she loves to move back to the hometown she hates - tortured by her memories, she’s determined to finally uncover the truth about what happened to Lisa that day. But someone is waiting for her there, someone close to her family. Someone who is hoping to finish off a job that was started years ago....

In seven days, Maggie’s son, Max, turns three. But she’s not planning a party or buying presents or updating his baby book. She’s dreading it. Because in her world, third birthdays are the days on which the unthinkable happens...she loses her child. For the last 12 years Maggie has been imprisoned in a basement. Abducted aged 15, she gave birth to two sons before Max, and on their third birthdays her captor came and took them from her. She cannot let it happen again. But she has no idea how to stop it. And the clock is ticking....

On a warm evening in late summer, best friends Raymond and Cara camp out overnight in the garden. By morning, Raymond is dead and Cara is missing. DI Rita Cannan is called home to the sleepy seaside town of Green-on-the-Sea to investigate Raymond’s murder and try to find Cara - alive. But the case carries eerie echoes of another girl’s death that rocked the close-knit community, decades ago.