Jack Lemmon and Walter Matthau are joined by a legendary all-star cast in this hilarious high-seas adventure. In search of lonely ladies with big bank accounts, happy-go-lucky Charlie cons his widower brother-in-law Herb into joining him on an all-expenses-paid luxury cruise with them signed on as dance hosts! Under the watchful eye of a crooning cruise director the two men soon find themselves in rough water as Charlie pursues a wealthy socialite and Herb encounters an unexpected romance of his own.