When author Charles Regnier returns to Paris with a best-selling book that criticizes the government, he's tormented by frequent blackouts. After a mysterious cat-like creature slaughters people close to him, Charles is suspected of murder. Charles fears that he is the beast, but his paramour Marie and best friend Henry, believe he's innocent... until the creature begins to stalk Marie.

Directed by: Lesley Selander
Written by: Sherman L. Lowe
Runtime: 62 minutes
Tagline: BEWARE! A MONSTER IS LOOSE!
Cast:
Carl Esmond Carl Esmond
Charles Regnier 
Lenore Aubert Lenore Aubert
Marie Audet 
Adele Mara Adele Mara
Marguerite Duval 
Douglass Dumbrille Douglass Dumbrille
Henry Borchard 
Gerald Mohr Gerald Mohr
Inspector Severen 
Fritz Feld Fritz Feld
Prefect of Police