A stalker gets the surprise of his life when he attacks Monique at night in her bedroom,

Monique some time has been monitored by a stalker without them knowing. He knows everything about her and saw her regularly while she was masturbating. When she is sleeping one night, he calls her bedroom and overtakes her. Where he is not expected that she hides a pistol under her pillow. The rollers are suddenly turned over. How will this end?