Dr. Dieter Hallervorden 'Didi' (Dr. in Romanistics) made his 2nd movie in 1984 of the New-West-German-Comedy (1970s-1989) era. The revenge of the non-heiring persons was planed with not so much intellect, but the simple gags are a sign of that time. If you enter it with a kind of funny, small humour, you won't forget ever, if you expect intellect or long arranged gags, then you should stay out.