Willy Guggenbühl is a correct bank official. However, the married, somewhat conservative husband has the problem of being a bit shy, which means that his wife is bored. The marriage proceeds without ups and downs, and so she wants to file for divorce one day. This makes the otherwise rather quiet Willy wake up and he decides, also on the advice of one of his friends, to save the marriage by making his wife jealous. It is the beginning of a turbulent sequence of highly amusing events...