Unforgotten (2015)

Episode Overview

Cassie delves into the mysteries surrounding the Brentford house, exploring the possibility that some suspects endured abuse during the events held there. Her investigation uncovers revelations that help Colin confront a long-buried shame he's carried for more than two decades. Meanwhile, Sara faces her own history head-on to establish her innocence. In the midst of this turmoil, Marion continues to alienate her family, driving them further apart.