An old antique ring turns a college professor into a homicidal maniac when he puts it on. The ring originaly belonged to Jack the Ripper, and the Ripper's spirit possesses whoever wears it.
Production companies：
United Entertainment Pictures
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Overview：An old antique ring turns a college professor into a homicidal maniac when he puts it on. The ring originaly belonged to Jack the Ripper, and the Ripper's spirit possesses whoever wears it.
