Jen Garner tries her best to be ‘wife and mother of the year’. She helps organise school plays and accompanies her husband to company dinners, all with a big smile on her face. But Jen has started to receive strange gifts in the post...first flowers, then a sympathy card. It could just be a joke; that’s what she tells herself. But then the final ‘gift’ arrives, and Jen has to question why somebody is so intent on shattering her life into pieces....

Single-mom Samantha moves with her daughter to a quiet village in the Peak District. The post as matron at Hallow Croft, now an exclusive residential home, seems to offer the escape she needs. But away from the TV room and afternoon activities, one of the residents is kept locked out of sight "for their own safety." And nobody will talk about the previous matron. She disappeared, leaving behind only a scuffed diary. Forty years ago, a girl was killed on the grounds of Hallow Croft Manor. Some people even say that began a curse on the home and the family who owned it.

It’s the night shift worker who finds them. Huddled in a hospital store cupboard is elderly Edith Higgins. Knifed to death. Sitting behind her is Staff Nurse Lily Frampton, a scalpel clasped in her blood-soaked hand. No one can understand why this kind-hearted, dedicated nurse would brutally murder a frail patient she’s spent months caring for. That same day, mild-mannered schoolteacher Rod Black is found surrounded by the battered bodies of his pupils. Why would a well-respected teacher beat five schoolboys to death?

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

Callum is lured to an isolated boathouse by an attractive older woman. When she gets him alone, she knocks him out with a single blow. Surrounded by hills and lakes, Still Waters is home to a close-knit community of wealthy retirees. It's an unlikely setting for violence. The police don't take Callum's disappearance seriously: he's 24-years-old, after all. But Callum's mother, a Still Waters resident, knows that something is very wrong. Then a body is discovered floating in the lake. Head bashed in. But it's not Callum. And someone tweets: Come out to play one last time, Alice. 

Detective Sam Helsdown hasn’t seen his daughter Zoe in two years and he’s excited and more than a little nervous to be at the airport picking her up for a visit. She’s 10 years old and has flown on her own for the first time. Flight BA631 from Athens has already landed and soon a trickle of people begins entering Arrivals. Among them is a little girl who runs towards him, head down, and throws herself into his arms saying ‘Daddy!’. But then he looks at her properly. This is not Zoe. This is not his daughter.

Flower shop owner Ellie McEwan is driving home late one frosty November night when a shadowy figure leaps into the road out of nowhere. Ellie swerves to avoid him — and slams head-on into the crash barrier. Days later, Ellie wakes up in hospital — and notices there’s something different. Everyone she looks at — the doctor, the nurse, her friend Carole — is surrounded by a coloured aura. Her near-death experience seems to have given her a new ability. And now Ellie must use her new-found gift to catch a killer.

A young woman is brutally attacked on her way home. It looks like she was the victim of a jilted—and twisted—ex-lover. But then two more women, also engaged to be married, are found dead. The press call the killer the "Surrey Stalker". And there’s a stack of similar cold case files. The pressure is on for young, ambitious DI Rob Miller. But with all the time he’s spending at the office, Rob’s also running a fine line trying to keep his fiancée, Yvette, onside as they try to plan their wedding.

While out collecting some Portuguese laurel for the formidable flower arranger Mrs Dawes, feisty widow Ellie Quicke comes across a dead body - a corpse without an identity. Next day, Mrs Dawes is discovered by Ellie and her grandson, Frank, badly beaten and close to death. Much to Ellie's dismay, the police think shaven-headed Neil, Mrs Dawes' grandson, is responsible, even after a third body comes to light.

The derelict house on the edge of the sleepy seaside town was a haven for courting couples, down-and-outs - and someone with altogether more sinister intentions. It was there that they found the corpse of 17-year-old Jenny Hyde. She'd been strangled.