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Troubled Waters is the fourth episode of the fourth season of Columbo, and the twenty-ninth episode overall.
Guest Stars: Poupee Bocar (Rosanna Wells), Jane Greer (Sylvia Danziger), Robert Vaughn (Hayden Danziger), Patrick Macnee (Captain Gibbon), Dean Stockwell (Lloyd Harrington), Bernard Fox (Purser Preston Watkins), Robert Douglas (Dr. Frank Pierce), Susan Damante-Shaw (Melissa), Peter Maloney (Artie Podell), Curtis Credel (Magician)
While on a sea cruise, Columbo is enlisted by the ship's captain to investigate the murder of the ship's lounge singer.