Eine Wahnsinnsehe 1990 on netflix

A trusting, naive police officer is prepared to follow the ever new ideas and quirks of his spirited, enthusiastic wife out of honest conviction. However, he cannot keep up with the pace of her willingness to turn to the next new thing. As a result, he is condemned to always do the wrong thing in his love, so that in the end the only refuge left to him is a mental asylum.