An innocent girl is "groomed" over the telephone, and nearly becomes the victim of an attacker.
Suave supercilious Carling (Karel Stepanek) receives several callers to his isolated house, all of whom hold a grudge against him. Next morning a corpse is found, and later identified as his by one of the visitors.
Bumbling navy officer Lieutenant Humphrey Fairweather (David Tomlinson) is transferred to HMS Berkeley, an old World War II destroyer, to keep him out of harm's way. But together with Chief Petty Officer Doherty (Peter Sellers), Fairweather gets into more trouble than might be thought possible, with events coming to a riotous conclusion when the Admiralty turn up for an inspection of the ship.
