This formula Esther Williams musical casts the star as Midwestern carnival swimmer Christine Duncan, in love with bandleader Dick Layn (Van Johnson). Attempting to smooth the course of romance for her friend Ellen Hallet (Paula Raymond), Christine makes a play for Ellen's wealthy boss Douglas J. Morrissen, Jr. (John Lund). Ellen wants to protect Douglas from fortune hunters, so Christine pretends to be a fortune hunter, so that he'll appreciate anew how much Ellen cares for him. Confused? So is Dick, who can't fathom Christine's bizarre behavior. If for nothing else, Duchess of Idaho is memorable as the "comeback" picture for dancing star Eleanor Powell, who has just as little to do as her fellow guest stars Lena Horne and (unbilled) Red Skelton. Watch for Amanda Gunsmoke Blake and DickSergeant Preston Simmons in supporting roles.