The Mystery of the Moonlight Sonata
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.
- Genre: Mystery, Drama, Crime
- Director: Kurt Gerron
- Cast: Louis de Bree, Wiesje van Tuinen, Louis Saalborn, Annie Verhulst, Egon Karter
- Country: Netherlands