After agreeing to house sit for friend Ronnie Shooter, Ralph Gorse meets solicitor Donald Stimpson for the first time, Stimpson makes the mistake of introducing him to middle-aged Joan Plumleigh-Bruce (with whom Stimpson has 'expectations'). Plumleigh-Bruce is immediately smitten, Ralph meanwhile spots the chance to talk Joan into investing in a business opportunity. Gorse also falls for posh Clarice Manners whom he meets at a 'den of iniquity' with Stimpson.

• George Baker
• Judy Parfitt
• Bernard Hepton