Considering the pedigree and title, the flick's not all that bad. In fact, it's well-mounted for it's type. There's good attention to set detail though lighting doesn't emphasize the dark mood. Seems poor Dr. Markoff is trying to find a cure for acromegaly which causes head and hand deformities that killed his beloved wife. Trouble is he needs a patient to research on. So he infects concert pianist Lawrence with the disease so he can both experiment with him and get next to the pianist's attractive daughter Patricia who strongly resembles his dead wife. Needless to say, complications ensue.
Except for the hokey gorilla sequences, the storyline manages to be fairly plausible for its kind. After all, Markoff is driven by understandable desires even though he victimizes Lawrence in the process. Naish is quite good as Markoff, along with Birell as his unrequited but loyal nurse Maxine. Together, they, rather than the good guys, establish the story's emotional center. Anyway, it's a better-than-average horror programmer from lowly PRC.