The original "odd couple" reunite in this rollicking adventure farce, as they take to the high seas in search of rich old ladies. Cheerful Charlie (Matthau) has offered his bolshy brother-in-law an all-expenses-paid trip on a luxury cruise. What he hasn't told him is that their accomodation is in the bowels of the boat, and Charlie's signed the pair of them up as dance hosts! Farcical fun.