Sleepaway Camp II: Unhappy Campers (1988)

Angela Baker has undergone years of therapy, electro-shock, and sexual-reassignment surgeries, and finally landed herself a job in the last place she should be working: Camp Rolling Hills. She has an old-fashioned approach to how camp should be, and an old familiar deadly way of making sure that those who don't follow her rules don't get to come back next summer.