A college paleontology professor acquires a newly discovered specimen of a coelacanth, but while examining it, he is accidentally exposed to its blood, and finds himself periodically turning into a murderous Neanderthal man.
A college paleontology professor acquires a newly discovered specimen of a coelacanth, but while examining it, he is accidentally exposed to its blood, and finds himself periodically turning into a murderous Neanderthal man.
Top Cast
Arthur Franz
Character: Donald Blake
Joanna Moore
Character: Madeline Howard
Judson Pratt
Character: Lt. Mike Stevens
Troy Donahue
Character: Jimmy Flanders
Nancy Walters
Character: Sylvia Lockwood
Helen Westcott
Character: Nurse Molly Riordan
Ross Elliott
Character: Sgt. Eddie Daniels
Alexander Lockwood
Character: Prof. Gilbert Howard
Whit Bissell
Character: Dr. Oliver Cole
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