SERIES ONE: Cat Hogan (Carolina Main, Unforgotten) is an isolated woman on the run from her past, a past she is forced to confront when the sudden death of her mother draws her back to the family she has spent the last ten years trying to avoid. Now this uncomfortable reunion awakens sinister demons and shines a suspicious light on her mother's death. Her suspicions start to mount against her father, Jim (Adrian Dunbar, Line of Duty) when she begins to notice discrepancies in his story. SERIES TWO: After a year away from home, disgraced physician Jim Hogan returns to make amends with his family. With nowhere else to go, he turns to his dutiful but ailing eldest daughter, Fiona (Gráinne Keenan, Black Mirror: White Christmas), and her cash-strapped husband, Paul (Ian Lloyd Anderson, Love/Hate). Then, one night, Fiona's car veers off the road and into a canal, leading to a disturbing discovery. As the police start investigating, shocking secrets emerge that deepen the rift within the family and derail Jim's chance at a fresh start.