A gentle satire of romance in the 50's as conservative, respected, shoe manufacturer Peabody, recovering from the flu, vacations on a tropic, British island, catches a mermaid and experiences freedom and release with her. Not that his fabulous catch meets with his wife's approval, nor that of the servants or British red tape, but the island's gossip feeds on his mysterious preoccupation and the added spice of his wife's departure. Warned of governmental action, Peabody escapes with his find, is caught by the police and returned for questioning. He lets his mermaid get away and collapses trying to swim after her. Officials assure him he has been ill again and return him to his wife. The dissolution of lifetime's ways of thought under the haze of unreality and achievement of unrecognized desires -- this attempts, without Thorne Smith sexiness and horsiness, to contract the world of reality with the incomprehensible. Pleasant comedy.