Necromancer (1988)

The theater student Julie Johnson is in love with her boyfriend, the musician Eric Freiden. One night, Julie is studying in the college when the students Paul DuShane, Carl Caulder and Allan break in the office of the teacher Charles DeLonge wearing animal masks to steel the questions of their test. The notorious Paul finds a letter that Julie had wrote for Charles when she had a crush on her teacher and reads for his friends. When Paul sees Julie in the corridor, he and Carl gang rape her and Allan does nothing to help her. Before leaving the college, Paul blackmails Julie with her letter, promising to disclose to the board if Julie goes to the police. Julie confides her secret to her friend Freda Lurch that takes her to a Necromancer that she found in an advertisement, to seek out revenge. Soon a demon uses Julie' shape to seduce the rapists and kill them, and Julie learns from the apprentice of magic Ernest how dangerous this demon is.