The heroes of this crime-comedy attempt to get hold of money by a funny trick. They start operating the new post-office of the housing estate a week before the official opening, pocketing the revenue themselves. The inhabitants of the estate do not understand the trick, and loads of money pour to the swindlers.

An agent arrives in Budapest. His mission is to report what people feel here. He meets Péter and Mari, later Ilona as well, who is the lover of Péter and just returned from Wunderland. Ilona longs for death, Péter for Wunderland, Mari for a constant sexual intercourse with the agent.