Corruption is rampant in the government of a "mythical" Louisiana, and the arrival of U.S. Senate investigator Loganberry (Victor Moore: Ziegfeld Follies) brings panic. The chief miscreants: politicians Col. Davis (Raymond Walburn), Davis (Frank Albertson), Captain Whitfield (Donald MacBride), and Dean Manning (Andrew Tombes) shift the blame on to their innocent tool, Jim Taylor (Bob Hope), who to save himself must "compromise" the holier-than-thou Senator Loganberry. As his instrument, Jim selects Marina Von Minden (Vera Zorina), a beautiful Viennese refugee. But matters become complicated when Jim falls for Marina... and she takes a liking for the Senator. Adapted from a musical comedy by Morrie Ryskind, 'Louisiana Purchase' boasts many musical numbers and stars the much loved English-born American comedian and actor, Bob Hope.