When Erica Maerlant is shot dead during a secret dance rehearsal at her luxurious villa, the Maerlant household turns out to be a serpent's nest of intrigue where everyone has a motive for the murder.
| Sound | Hugo de Groot | Music |
| Directing | Kurt Gerron | Director |
| Writing | Karl Zimmering | Writer |
| Sound | Jaap Kool | Original Music Composer |
| Writing | Walter Schlee | Writer |
| Production | Loet C. Barnstijn | Producer |
| Camera | Akos Farkas | Director of Photography |
| Writing | Willy Corsari | Novel |
| Editing | Oscar van Leer | Editor |