The night, the prowler (1978)

Felicity Bannister is a young woman living in the shadow of her overpowering mother. Her oppression is her worst enemy until the day she is attacked by an intruder who breaks into her bedroom and forces Felicity into action. The tables are suddenly turned and Felicity transforms from the helpless victim into a ruthless renegade in search of trouble, driven by the anarchic thrill of malevolence.