Jack Lemmon and Walter Matthau, the big screen's original "odd couple," star in this riotously funny high-seas adventure. In search of lonely ladies with big bank accounts, happy-go-lucky Charlie (Matthau) cons his cranky, widower brother-in-law Herb (Lemmon) into joining him on an all-expenses-paid, luxury cruise. But their "deluxe accommodations" are deep in the bowels of the ship, and Charlie has signed them on as dance hosts! Under the tyranny of crooning cruise director Gil Godwyn (Brent Spiner), Charlie and Herb are in for rough weather as they romance the luscious Liz (Dyan Cannon) and the lovely Vivian (Gloria De Haven).