Pappa Ante Portas is a 1991 German comedy film directed by Loriot, who also played the leading role and wrote the script, and Renate Westphal-Lorenz.
It turns out Heinrich's wife Renate and his son Dieter were quite comfortable with the absent husband and father and do not want to see their situation disrupted.
Heinrich, however, refuses to allow his career to end and immediately begins to rearrange the Lohse household based on his questionable managerial skills.
After buying a ridiculous amount of mustard to get a volume discount, Heinrich goes on to invite a film crew to shoot a television series in the Lohse household.
The last shot shows Heinrich and Renate playing a very amateurish recorder concert in their living room in front of their son Dieter and Mrs. Kleinert, their cleaning lady.