Plagued by flashbacks of a violent home invasion, Laura Benson is on the brink of a nervous breakdown. Looking for a fresh start, she and her husband sell their house and relocate to a seemingly idyllic gated community. But, little do the Bensons know, evil not only dwells in the neighborhood...it lives next door. As strange and terrifying events unfold, Laura doesn't know whether her sinisterly sweet neighbor is to blame, if she's been targeted for revenge...or if she's losing her mind.

Julian Berniers returns from Illinois with his young bride Lily Prine to the family in New Orleans. His spinster sisters Carrie and Anna welcome the couple, who arrive with expensive gifts. The sisters hope Julian will help with their expenses, and he tells them that while his profitable factory went out of business, he did manage to save money. It turns out that Julian pulled off a real estate scam and took off with the money. Carrie is obsessed with her brother. Her jealousy of Lily pushes her to discover the shady land deal for herself and she does everything she can to wreck their marriage.