As the drug slowly takes effect, a dark-haired, taloned beast with two large fangs now appears in the chair.

The evil personality scuttles back to the laboratory only to discover that the antidote is finished and that he will have to remain as Mr. Hyde forever.

A burly policeman breaks down Jekyll's door with an ax to find the kindly doctor dead from drinking poison.

[1] Cruze plays Jekyll as a white-haired, middle-aged, well meaning doctor, but "upon his transformation into Hyde, he cuts loose and delivers a memorable bit of pantomime acting....as he morphs into an impish and violent sociopath".

He said "in fact, he is not even tall enough to see himself in the good doctor's mirror hanging on the wall..."[4] Critic Troy Howarth felt the Hyde makeup was crude yet effective, although he felt Jekyll's laboratory set looked like a cheap closet.