Prom Night III: The Last Kiss
is 1990 horror comedy film.
Unlike the other Prom Night
films, this installment is a continuation of the previous film, although it was released direct-to-video as the previous film flopped theatrically, but performed well on home video.
After Mary-Lou escapes from Hell, she begins dating a student named Alex, offering her special brand of skills (read: murder) to help him through high school. But when he tries to break off with her, all hell breaks loose (literally).
This film has the examples of: