Episode 3: The devastating events that led up to Rachel’s murder are revealed, and the true identity of her killer is finally unmasked.
Cast: Bill Nighy (Leo Argyll), Anthony Boyle (Jack Argyll), Anna Chancellor (Rachel Argyll), Morven Christie (Kirsten Lindstrom), Crystal Clarke (Tina Argyll), Christian Cooke (Mickey Argyll), Alice Eve (Gwenda Vaughan), Matthew Goode (Philip Durrant), Ella Purnell (Hester Argyll), Eleanor Tomlinson (Mary Durrant), Luke Treadaway (Dr. Arthur Calgary), Brian McCardie (Bellamy Gould), Frances Grey (Lydia Gould)
Writer: Sarah Phelps / Novel: Agatha Christie / Director: Sandra Goldbacher
Original Airdate: 2018-04-15 on BBC
Series: Ordeal By Innocence Season 1 Episode 3