Eric is a successful entrepreneur - in an unusual line of work: he provides people who want to cheat with watertight alibis. When Eric sees his ex-girlfriend from his student days, the vivacious interior designer Andrea, again, sparks fly between the two. But Andrea is horrified by Eric's job, as fidelity is the most important thing for her - she wants nothing more to do with Eric. But he comes up with a trick.

Director Rufus Lindner is shooting his first film: " Die Vatikankiller". With audience favorite Kai Rabe in the leading role, success is guaranteed. But suddenly chaos descends on the film team: A starlet is murdered, the bitchy leading man goes increasingly crazy, a drunken policeman causes a lot of trouble, and the sex-obsessed producer Egon Lütter doesn't make things any easier.