AllMovie

The fourth of the feature-length Quincy, M.E. episodes produced for the NBC Sunday Mystery Movie anthology takes place on the Fourth of July, as medical examiner Quincy (Jack Klugman) is relaxing on the beach with the girlfriend Lee (Lynette Mettey). Quincy's idyll is cut short when a seriously injured swimmer washes onto the shore. During the subsequent lab examination, Quincy discovers that the swimmer had been poisoned by a fish--one that is usually found thousands of miles away, in warmer waters. Convinced that the swimmer was the victim of foul play, Quincy launches an investigation which leads him to a multimillion-dollar jewel robbery and a conspiracy spreading across two different countries.