- Country: West Germany
- Genres: N/A
- Release: 1980-11-19
- Director: Michael Verhoeven
- Writers: Leonhard Frank , Michael Verhoeven
- Language: German
- Stars: Trude Breitschopf , Alfred Edel , Rosl Mayr , Hannes Messemer , Otto Sander
- Runtime: 103 min
- Awards: N/A
- AKA: Die Ursache , Die Ursache
- Plot: N/A
- IMDB:tt1187337