The Faculty (1998)

Follow Casey Connor, a high school newspaper photographer at Herrington High. When he witnesses a nurse's murder and her subsequent resurrection, he becomes intrigued by the bizarre events. As Casey investigates, he discovers a malevolent force taking over the school's staff, turning them into alien beings. Teaming up with a group of eclectic students, they uncover a sinister plan to assimilate humanity. The film blends sci-fi, horror, and teenage drama as the students confront an extraterrestrial threat.