Based on storyline in Gideon's Month. A housekeeper (Kay Walsh) looks after old men and murders them for their money. She has her new victim lined up after electrician and ex-con (Harry Fowler) finds her previous victim. Richard Davies has a small part as a postman.

New storyline. Morna Copthorne's (Angela Douglas) body is found by a lake. Gideon is asked to go to the small village of Wendley (this case unusually did not feature London) to sort the matter out as her father is a big name at the M.O.D. She is the girl everyone loved so how did she die? As Gideon and Keen interview witnesses about her past, a new picture emerges of a young rich girl out of control. Norman Bowler plays a black man in this and reflected the racial tensions of the time. Also stars Kay Walsh.