When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

Hogmanay. New Year's Eve. A dead teenager, another missing. One hell of a case. Meet DS Vicky Dodds. Settling down for a nice Hogmanay with her daughter and her best friend, a phone call pulls DS Vicky Dodds into work and to a deadly new case. A teenage girl, her body cooling in a cold, dark supermarket car park. Found next to her friend’s car, but the driver’s missing too — has the killer taken her? Or is she the killer?

When a landslip on Pembrokeshire’s stunning coastal path reveals the harrowing remains of two bodies, ex-DCI Evan Warlow’s quiet retirement is shattered.

When Detective Alana Mack arrives at Clonabee police station, in a small Irish seaside town on the outskirts of Dublin, she doesn't expect to find a distressed two-year-old girl sobbing on the floor. Abandoned in a local supermarket, the child tells them her name is Casey. All Alana and her team have to go on is a crumpled note begging for someone to look after the little girl. This mother doesn't want to be found.

DI Zoe Finch has a lot on her plate. New job, new team, new county. And on day one, she’s plunged straight into a murder investigation. Zoe has to hit the ground running. She needs to manage a new team with its fair share of challenges, get to grips with a new boss who might not be all she seems, and worry about her reputation following her north to Cumbria. Can she settle in quickly enough to solve the murder and quell local tensions, as well as coping with an unfamiliar environment?