Though Richard beefs about the high price of groceries, its the hot weather that plays a part in the world of crime. Mr Gibson is an old man who is tired of his blackmailers, and when he confronts them a fight ensues. Black mail is the least of their problems when old man Gibson ends up dead after the struggle. Elsewhere, Hellen Asher phones her favorite detective boyfriend to arrange for a date.
Word of the corpse comes across the desk of Richard Diamond, and he kjoins the cops on the scene. The main witness, a confused school teacher provides the comic relief as clues send Richard on the trail of the killers. Mr Gibson is identified, and we learn some of his past from his family, at the same time they learn of his murder. Connections to a tawdry affair are easily made.
There’s not much mystery to the show, just a matter of how Richard juggles the comic relief, and putting facts together to arrive at the end that we all know he’ll find. Relaxing with Hellen, he has to sing for his supper.