A bumbling gambler (Walter Matthau), intent on meeting a rich widow, tricks his widowed brother-in-law (Jack Lemmon) into going on a cruise ship with him as dance instructors. What follows are some hilarious antics not only on the open seas, but on the dance floor, where one of these "instructors" doesn't know how to dance. This was the last time that Matthau and Lemmon teamed up and this story puts their talents to great use. CAPTIONS
