YMMV / Initiation: Silent Night, Deadly Night 4

• Complete Monster: Fima is the seemingly sweet proprietor of a bookstore who in actuality is a fanatical worshipper of Lilith. Fima, seeking the "perfect daughter", horribly conditioned her own daughter to the point where she horrifically dies, to which Fima's only response is "she was too weak". Fima takes in the protagonist, Kim, to mold her into her ideal "daughter", meticulously destroying Kim's life to assert control over her. Fima drugs Kim while having her pet Serial Killer Ricky murder innocent people, including Kim's husband, having Kim violated by insects and raped by Ricky to crush her will. Fima imbues Kim with a flame that will burn her alive from the inside-out should she not follow the cult's commands and finally attempts to make Kim murder a young boy. When Kim refuses, Fima tries to kill her, and murders Ricky without a second of hesitation when Ricky steps between them.
• Surprisingly Improved Sequel: Whether or not it's actually a good film is up for debate, but it's generally agreed to be a major step-up over the previous two films, and perhaps the best of the four sequels.
• Visual Effects of Awesome: The effects, courtesy of Screaming Mad George, are truly disgusting and well made.