Sleepaway Camp III: Teenage Wasteland (1989)

IMDB
Genre : Comedy, Horror
TRAILER
Director : Michael A. Simpson
Stars : Pamela Springsteen, Tracy Griffith, Michael J. Pollard, Mark Oliver
Plot : After murdering a young girl, Angela Baker assumes her identity and travels to Camp New Horizons, built on the grounds of the camp she terrorized the year before, and starts killing again.