Mountaintop Motel Massacre(1983)
Please do not disturb Evelyn. She ALREADY is.
Evelyn, a severely disturbed middle-aged woman who, after being released from a state mental institute, returns to run the hotel of the film's title. It isn't long before something trigger's Evelyn's return to madness and she begins terrorizing her guests with a sickle and a crazy look in her eye.