This was Geraldine James' very first role in front of a camera. Although she was an accomplished stage actress, she had never acted in a film or television programme before and was worried that her acting and delivery might be too theatrical. The very first scene to be shot was the one when her character is in bed with Carter: a real baptism of fire!
The location used for Shirley Glass's flat was also used as Doyle's flat in The Professionals Series 4 link=tt0679312]: the stained glass in the front door and the green spiral staircase from the living room to the bedroom are recognisable in both episodes.
The location used as Ernie Millan's car-lot was the same one that was made famous as Arthur Daley's car-lot in Minder (1979).
This edition was fourth in the charts with an audience of 8.25 million under the JICTAR Ratings System.
Ken Kitson (Gus Killick) later appeared with Dennis Waterman in Dreamhouse (1982). He later became best known for playing PC Cooper in Last of the Summer Wine (1973) from 1983-2010.