Two struggling musicians witness the St. Valentine's Day Massacre and try to find a way out of the city before they are found and killed by the mob. The only job that will pay their way is an all girl band so the two dress up as women. In addition to hiding, each has his own problems; One falls for another band member but can't tell her his gender, and the other has a rich suitor who will not take "No," for an answer.
A private school for young girls is scandalized when one spiteful student, Mary Tilford, accuses the two young women who run the school of having a lesbian relationship.
Marshal Wyatt Earp kills a couple of men of the Clanton-gang in a fight. In revenge Clanton's thugs kill the marshal's brother. Thus, Wyatt Earp starts to chase the killers together with his friend Doc Holliday.