London journalist Tom Ronstadt's world falls apart as a result of his own actions. Upon returning to his Lancashire hometown after 18 years, he finds his father, Sam, in the grips of Alzheimer's disease. During the course of the series, Tom begins to unravel the mystery of his childhood that drove him away many years earlier. Trying to extract information from Sam causes Tom to grow frustrated with his father's inability to remember. Tom continues on his quest for the truth, unaware he is unearthing a devastating crime that will reveal unimaginable secrets.

John SimmTom Ronstadt

Jim BroadbentSam Ronstadt

Olivia ColmanNancy Ronstadt

Nico MirallegroTeenage Tom Ronstadt

Claire GooseMandy

Daryl FishwickWendy

Shaun DooleyMike Eldridge

Timothy WestMetzler

Sarah Jayne DunnMetzler's PA

Alex ClaytonYoung Tom Ronstadt

Sarah ParksWendy's Partner

Kate MagowanJane

John Paul HurleyKevin

Denise BlackBelinda

Ned DennehyRicky

Allan CordunerGeller

Abby GreenhalghHayley