When a counterfeit currency racket comes to light on the French Riviera, Detective Inspector Meredith is sent speeding southwards out of the London murk to the warmth and glitter of the Mediterranean. Along with Inspector Blampignon, an amiable policeman from Nice, Meredith must trace the whereabouts of Chalky Cobbett, crook and forger. Soon their interest centres on the Villa Paloma, the residence of Nesta Hedderwick, an eccentric Englishwoman, and her bohemian house guests, among them her niece, an artist, and a playboy. Before long, it becomes evident that more than one of the occupants of the Villa Paloma has something to hide, and the stage is set for murder.