Billy Wilder directs this critically acclaimed classic comedy starring Marilyn Monroe, Jack Lemmon and Tony Curtis. In February 1929, unemployed musicians Joe (Curtis) and Jerry (Lemmon) go on the run after witnessing the St Valentine's Day Massacre. Pursued by gangsters led by the ruthless Spats Colombo (George Raft), the duo are forced to disguise themselves as women and join Sweet Sue (Joan Shawlee)'s all-girl band on the next train to Florida.

Joe falls for Sugar Kane (Monroe), the band's singer, while Jerry finds himself pursued enthusiastically by millionaire Osgood Fielding III (Joe E. Brown). Comic complications ensue.