Amorous Dr Burke inadvertently finds himself on board an ocean liner and cheerfully adopts the role of ship's medic, only too happy to take the temperatures of all the bikini-clad lady passengers. Comedy, the last of seven films adapted from Richard Gordon's series of books, starring Leslie Phillips, Harry Secombe, James Robertson Justice, Irene Handl and Freddie Jones.

Dr. Burke is in love with Ophelia but doesn't have time to propose to her as she leaves for a cruise to the Mediterranean. Also on board the cruise ship is an old school chum of Burke's who plays 'Dr.Dare' in a very popular TV series and who women flock to. Burke decides to join the cruise, but is first apprehended as a stowaway, and then becomes the captain's steward. For Burke, trying to talk to Ophelia is a hard enough task, but he meets some funny characters on board, such as a pools winner and a very stubborn captain.