Feind im Blut

Feind im Blut
Feind im Blut
Directed by	Walter Ruttmann
Written by	Walther Ruttmann; Lazar Wechsler [de]; Gerhard Bienert;
Produced by	Lazar Wechsler
Cinematography	Georges C. Stilly; Emil Berna;
Edited by	Walther Ruttmann; Georges C. Stilly;
Music by	Wolfgang Zeller
Production; company	Praesens-Film [de]
Release date	14 April 1931;
Running time	74 minutes
Countries	Switzerland; Germany;
Language	German

Feind im Blut (English: Enemy in the Blood) is a 1931 Swiss-German drama film directed by Walter Ruttmann. It tells three stories about people who become infected with syphilis. There are also documentary parts with information about the disease. The film was co-produced with several organisations focused on combatting sexually transmitted infections.