I've seen The Monster Maker a couple of times and found it quite enjoyable, despite reading bad reviews about it.
A mad scientist falls in love with a pianist's daughter when he sees her at one of her dad's concerts. After he goes round to the scientist's home one night to tell him to stop sending her flowers, he knocks him out and injects him with a fluid that will give him a disease of the glands and turn him into a monster. He gradually turns over a period of time and goes back to this mad scientist after his doctor recommend him as he has a cure for this disease. Back at the scientist's home, the scientist straps him to a bed and will only give him a cure if his daughter agrees to marry him. The pianist's daughter's lover turns up and kills the mad scientist and the pianist is given the fluid that will cure him by the scientist's assistant and makes a full recovery.
In the mad scientist's laboratory, we get to see a pig that he has been experimenting on, a dog and, best of all, a gorilla (a man in a gorilla suit), which tries to kill the scientist's assistant.
There several familiar faces in the cast in this movie: J Carrol Naish (House of Frankenstein), Ralph Morgan (Night Monster) and Glenn Strange (House of Dracula). Also in the cast are Wanda McKay, Tala Birell and Terry Frost.
The Monster Maker is a must for all sci-fi/horror fans. Great fun.
Rating: 3 stars out of 5.