After briefly courting Lena, Micha has decided to take the plunge: declare his love for his beloved. However, he does not succeed because his speech is interrupted by the girl's father. In fact, the latter has decided to take his revenge in a rivalry that has long opposed him to his friend. The sum at stake is more than tidy and it is Lena who risks winning the bet. This is why the situation, in this irresistible comedy, changes completely without delay