Shanghaiing—for sailors on leave in Old San Francisco, a risk ever present. For two young sisters sold into vice, a means to survive. Yva and Julie-Marie's stepfather has tasked them to bring the gospel to the notorious red-light district known as the Barbary Coast. Soon he is kidnapped and the sisters are left to fend for themselves. Thus they turn to crime at the Danse Joyeuse, a saloon and brothel, conspiring to abduct the very customers who would degrade them.