Chlodwig Pullmann is a tax inspector and is involved in a thousand little deals and tricks - with the knowledge of Mayor Karsten Leimer, who has a lot more dirt on him. Pullmann's wife Jenny, on the other hand, fights against corruption in a citizens' initiative and is of course not allowed to know anything about her husband's deviations. When Pullmann gets a new superior who keeps a close eye on him, things get tight - and in order not to jeopardize his marriage, he decides to go straight. The only question is whether he will succeed.