Cory Chase has a Halloween obsession. She enjoys getting dressed up and attending parties every year, but her husband—who is extremely jealous—forbids her from dressing sultrily. However, this year is unique since Cory’s spouse is not in town, allowing her to be as promiscuous as she pleases. Cory’s stepson Anthony is the only person standing in her way of realizing her fantasy of dressing sultry; he finds her donning those little costumes and threatens to expose her to her husband. Cory strikes a bargain with her stepson, knowing that he is a virgin nerd who can’t really resist his stepmom’s sultry costumes: she will indulge his fantasies, and he won’t inform on her.