- Country: Switzerland
- Genres: Crime, Drama
- Release: 1949-04-22
- Director: Leopold Lindtberg
- Writers: Friedrich Glauser , Leopold Lindtberg , Alfred Neumann
- Language: Swiss German
- Stars: Heinrich Gretler , Heinz Woester , Irene Naef , Adolf Manz , Olaf Kübler , Elisabeth Müller , J. Steiner , Hans Kaes , Mathilde Danegger , Otto Brefin
- Runtime: 113 min
- Awards: 1 nomination
- AKA: El crimen del manicomio (Mexico) , Rządzi szaleństwo (Poland) , Tvångströjan (Sweden) , Nel regno di Matto (Switzerland, Swiss Confederation) , Meurtre à l'asile (Switzerland, Swiss Confederation) , Kriminalfall Dr. Borstill (Austria) , Matto regiert , § 51 - Seelenarzt Dr. Laduner (Germany) , Le règne de Matto (France, French Republic) , Madness Rules , Meutre à l'asile (France, French Republic) , Il regno di Matto (Italy)
- Plot: A police inspector has to deal, in this murder mystery set in a mental hospital, with idiosyncratic suspects, mixed motives and conflicting testimony.
- IMDB:tt0127681
Madness Rules Cast · · · ALL
Leopold Lindtberg
Director
Heinrich Gretler
Wachtmeister Studer
Heinz Woester
Dr. med. Ernst Laduner
Sigfrit Steiner
Kommissar
Friedrich Braun
Zarli Carigiet
Jules
Fritz Delius
Hugo Döblin
Enzo Ertini
Hans Gaugler
Emil Gerber
Jutzeler, Pfleger
Walburga Gmür
Emil Gyr
Max Haufler
Weyrauch, Pfleger
Emil Hegetschweiler
Gilgen, Pfleger
Max Werner Lenz
Adolf Manz
Georg Caplaun
Walter Morath
Elisabeth Müller
Irma Wasem, Krankenschwester
Armin Schweizer
Johannes Steiner
Schaggi Streuli
Nachtwächter
Mathilde Danegger
Dr. med. Spühler