Der Stinkstiefel(2009)

Ever since his wife Paula left him, Felix Keller has been holed up in his apartment, and it is only right that the residents avoid him. But then a leaking water pipe, which turns his apartment into a damp biotope, forces him to make contact with the outside world. The water damage was caused by Marie in the apartment above him. Of all things, Felix is partly to blame for a car accident in which her daughter Amelie broke her leg