Happy Families - S4.E4

Businessman Brian Taylor finds himself in the frame for murder when an attractive girl is found dead. Paul Dangerfield is working on the case, but Brian is a close pal so he has to tread a fine line between friendship and professionalism.

Dangerfield is called upon to confirm the death of a young drowning victim. When it transpires that the woman was a work colleague of his friend Brian Taylor, the police and Brian's wife Barbara suspect there was more to the relationship.