This film got little coverage in horror books or magazines I collected growing up, and I only became aware of its availability in the internet age. The premise was intriguing, although I assumed it to be more of a comedy and probably cheaply made. As a fan of Crain's Blacula I was pleasantly surprised to discover his involvement-even more so when "Big Skillet" Ji-Tu Cumbuka shows up--playing a straight talking police detective who reminds one of Samuel Jackson. The film does appear cheaper than Blacula and has less dramatic tension--on the other hand it manages to give its central character a bit more depth than one would expect from the Jekyll and Hyde story having been done so many times previously. The scene where Casey tells the prostitute about his childhood and mother is poignant, and makes his request to her all the more chilling since we realize he has some sincere reason to do his research and wont take no for an answer. A mad scientist with a twist.
The makeup by future fx star Stan Winston who had worked with Casey on the TV movie Gargoyles isn't a big deal by today's standards and despite the title he doesn't really look caucasian but more like a Haitian voodoo zombie. Whether Winston was hampered by budget or it was a conscious decision to make him more of a ghoul is an open question.
There are some story lapses and the ending seems rather abrupt and too basic for a story that had established such a dramatic impetus for the main character--but it has a few amusing lines and is probably worth a look for people seeking an alternative drive-in horror film. 6 1/2 out of 10.