A piece of lint from a Beethoven fan's record collection sticks to the clothes of a bank robber. Inspector Koschonsky finds the lint and solves the case using a chain of evidence consisting of lint, musical notes, and sounds.
| Actor | Role |
|---|---|
 Eva MattesNot listed | Not listed |
| AAndy HertelNot listed | Not listed |
| WWerner-Albert PütheNot listed | Not listed |