Joey is a struggling writer with no money. His roommate Carl is a charming stud with a taste for young girls. Together, these two insatiable dreamers will laugh, love and screw their way through a decadent Paris paved with wanton women, wild orgies and outrageous erotic adventures.

Doctor Falke takes revenge on Gabriel von Eisenstein because, after a carnival, he left him lying in a park, disguised as a bat, so that he would be ridiculed by respectable citizens the next morning. Falke seizes the opportunity for revenge when Eisenstein gets himself into trouble by being sentenced to ten days in prison for disrespectfully mentioning a princely person. The wealthy Russian Prince Orloffsky has asked Doctor Falke to arrange the entertainment for his grand party – and in this lavish setting, Falke carries out his revenge.

Claus celebrates his promotion with a night out on the town. Ebbesen wants to close a workshop and Allan gets fired. Ulla, who is bored in her marriage, rekindles her old relationship with Allan and tries to find evidence against Ebbesen's shady dealings. Ulla and Allan flee together and make plans against Ebbesen, but the police are ready for them when they arrive.