Gareth Bryn

Weighed down by grief and guilt, DCI Tom Mathias comes to coastal Aberystwyth after a decade on the London police force. Escaping recent hurts and long-simmering trauma, he's on a journey of recovery, healing himself by bringing justice to others. But the beautiful seaside vistas and close-knit mountain villages hide a multitude of sins. Partnered with hardworking local DI Mared Rhys, Mathias confronts mystifying murders that push him to the edge...

Weighed down by grief and guilt, DCI Tom Mathias comes to coastal Aberystwyth after a decade on the London police force. Escaping recent hurts and long-simmering trauma, he's on a journey of recovery, healing himself by bringing justice to others. But the beautiful seaside vistas and close-knit mountain villages hide a multitude of sins. Partnered with hardworking local DI Mared Rhys, Mathias confronts mystifying murders that push him to the edge...

Cadi and Owen question Karl again after a witness places him near Geraint's house on the day of the murder. Karl claims he is innocent but appears to be hiding something. Hitting a dead end, Cadi turns her attention to Mia.

When an anonymous caller alerts the police to a body found on a rundown estate, Cadi and Owen are called to investigate. The victim is Geraint Ellis, a former teacher at odds with local teenagers.

The community gathers together at a local church for a memorial service for Geraint. Cadi and Owen attend in the hope of securing new leads. Connor's overwhelming guilt reaches a breaking point.

Two young lovers escaping their mysterious past crash their car into a ravine. They are saved by a stranger whose dark secrets will reveal a more unsettling connection to the young couple.

While dealing with her father's failing health, Cadi attempts to track down Dylan's truck. With Megan still locked up, Dylan's neighbor makes an unexpected visit, and Lowri struggles to recover from her attack.

Cadi argues with her sister about their ailing father. Later, Lowri recounts the details of her attack to the police, leading them to question her abusive ex-boyfriend, Marc.

DI Cadi John investigates the death of a young woman found in a river, who appears to have been shackled for some time before her demise. Cadi and her colleague DS Owen Vaughan identify the body as Mali Pryce, a troubled girl who disappeared years ago.

Admonished by his domineering mother, Iona, Dylan skips work and develops an unhealthy obsession with Lowri, a young nurse. Meanwhile, the detectives interview Mali's friend Sara, who points them to Mali's dangerous ex-boyfriend.