Danny plays shy Jerome Taperman who, while on a cruise shipment, impersonates a commodore to impress his girlfriend, Rhoda (played by Joyce Van Patten). Detectives searching the vessel for a notorious master-of-disguise mistake Jerome for the criminal who is loose on board. Also appearing are Diahann Carroll as the cruise ship's entertainer, and Joyce Jameson, Herbie Faye and Buddy Lewis in support.