Dek and Shirley live together with Marlene, Shirley's daughter by the sexy delinquent Jimmy, who skedaddles years ago and hasn't been heard from since.

Decent-but-dull Dek loves television. Like every other person Shirley has ever met, Jimmy witnesses Dek's TV proposal and he returns to town, convinced that his nerdy rival doesn't stand a chance against a renewed romantic assault from the great love of her life.

The race is on for Shirley's affections, and Dek's the one driving the Ford Sierra.