Grumpy, constantly drinking American foreign reporter Peter Dyneley starts to go crazy and change into a murderous two-headed creature after he's been unknowingly given a serum by a Japanese scientist.
One of the first US/Japanese co-productions that was filmed completely in English; this fairly fun B-movie is filled with the typical melodrama, is talky at times and has some amusingly shabby effects.
Famous for the "eye in the shoulder" scene and citied as an inspiration for a bunch of films (most notably the black comedy How To Get Ahead In Advertising) this has one silly finale and a somewhat anti-climatic ending.
Tacky and not to be taken a bit seriously.
Directed By: George Breakston, Kenneth G. Crane.
Written By: Walt Sheldon.
Starring: Peter Dyneley, Jane Hylton, Satoshi Nakamura, Terri Zimmerman.
aka: The Split.