The Invisible Dr. Mabuse

The notorious Dr. Mabuse, famed master criminal, is out to get "Operation X," a potion that makes a person invisible, so he can rule the world. U.S. American FBI agent Nick Prado is investigating Mabuse and his gang, and has taken a special interest in an invisible phantom which seems to be stalking a theatrical troupe. Upon snooping around backstage after a performance, Prado is captured and brutally murdered. Fellow agent Joe Como comes onto the scene to investigate this grisly crime and immediately is threatened with death. Next he meets sultry dancer Liane Martin, who senses she is being pursued by an invisible man!