Actually, it was supposed to be Rob Becker's big day. Even as a child, the unsuccessful car salesman wanted to become a comedian and now he finally has the chance to prove himself at the Openmic evening of the local comedy club. He already has the perfect topic for his program ready: Rob recently met the Caveman - his imaginary friend from the Stone Age. Since then, Rob has often and gladly exchanged ideas with this age-wise caveman and believes that, thanks to his alter ego, he can finally better understand the difference between men and women, the hunters and gatherers. But there is a problem - and that is Claudia Müller and is married to Rob. After Claudia has left him in an argument and only 15 minutes before his big performance, Rob drags himself onto the stage and spontaneously changes his program. He explains to the audience the incompatibility of women and idiots. The modern man, Rob says, has failed in the modern world. He takes the audience on a wild and funny ride through his relationship - from the first meeting with Claudia to the separation. In the end, the audience should decide: Is Rob really the complete idiot in this respect or maybe not?