guest star: Derek Farr (Frank Hewitt)

guest cast: Iris Russell (Erica Hewitt), Walter Hudd (Brian Carnadine) Andre Melly (Gloria), Jenny Laird (Sarah Hawkins) Harry Fowler (The Heckler), Anita Sharp-Bolster (Mrs. Cartwright), Frank Atkinson (Mr. Cartwright), Margo Cunningham (Sister Mayhew), John Scarborough (Brother Johnson), Hugh Cross (Inspector Riley), Anthony Baird (Sergeant), Gerald Sim (Policeman)

Frank Hewitt's sexually liberated wife forces her husband to ""live in sin""; compromising his religious principles. The result? He goes berserk but represses all memory of the event.

What act of violence did he commit? Dr. Corder attempts to access Frank's amnesiac mind...