After covering up a murder at their prom, a group of high school seniors are haunted by a killer priest who seeks to deliver them from evil.

Hello Mary Lou: Prom Night II is a supernatural horror film set in a high school. The movie follows the story of a prom queen ghost who seeks revenge on her former high school by possessing a teenage girl. The film is set in the 1980s and explores themes of prom, supernatural powers, possession, and revenge.

Prom Night is a horror movie set in a high school, where a masked killer seeks revenge on the night of the prom. The movie involves slasher elements, a dark secret, and a mysterious killer. As the prom night progresses, characters are murdered one by one, with a teenage girl in jeopardy. A detective tries to uncover the identity of the killer while a group of teenagers face death and danger.

Prom Night III: The Last Kiss is a horror comedy film that takes place during a prom night at a haunted high school. When a biology teacher resurrects a female ghost, chaos ensues as the ghost seeks revenge on those who wronged her in the past. The film combines elements of comedy, horror, and thriller genres.