A second class gendarme is first on the scene to the apartment of his fiancé to investigate a double murder which has occurred next door. One victim has her head ripped off, the second is stuffed up the chimney with apparent inhuman strength. With the door bolted from the inside and the windows apparently nailed shut, the policeman is stupefied at how the perpetrators could have escaped. He sees this as an opportunity to make his mark on the force, get a promotion, and earn enough money to finally marry his loved one, but the sergeant refuses telling him to leave it to the more experienced, and smarter detectives. He seeks the help of a Sherlock Holmes type person (E.G. suggests that this character was the inspiration for Holmes) to solve the case, win his promotion, and ‘get the girl’.
The dialogue and acting was rather stilted, I think because they were trying to simulate what they thought was French people speaking English. (Would that be a Freedom Accent? 