Hal Mastik, a masseur on the brink of marriage to emerald mine heiress Miranda Kerwyn, learns to his horror that his college roommate Zenobia Poindexter is dropping by. Though their relationship had been innocent she had everything a man could want: muscles, a moustache, and a dueling scar, a post grad hormone treatment has made her a knockout. He cons jockey Bert Pandangus into dressing as a girl to pose as Miranda during Zenobia's visit except that Miranda meets Bert first and Hal has to introduce Miranda to the real Zenobia each woman believing the other one is "Hal's sister Gretchen" while a supposed "Mastik family curse," an eerie thunderstorm, and total confusion of identities creep toward a hilarious climax and cast and audience have the time of their lives.