Desc: The Strange Case of Doctor Rx: Directed by William Nigh. With Patric Knowles, Lionel Atwill, Anne Gwynne, Samuel S. Hinds. A mysterious vigilante known as "Dr. Rx" strikes again. Assigned to the case is private detective Jerry Church but the crimes are baffling and involve strangulation and a possible attempt to implant a gorilla's brain into a human body.