On an ocean voyage, a card shark and her father cheat a naive man out of his money. Things take a twist when the girl falls in love with the man she's just fleeced.

Mitzi Gaynor
as Jean Harris

George Gobel
as George "Hotsy" Hamilton

David Niven
as Patrick Harris

Reginald Gardiner
as Gerald

Fred Clark
as Horace Hamilton

Harry Bellaver
as Marty Kennedy

Hans Conried
as Jacques de Montaigne

Peggy Moffitt
as Penny

Marilyn Hanold
as Girl

Clinton Sundberg
as Purser