Samantha and daughter Blake invite Chloe, a foreign exchange student from Britain, into their California home. The two girls become close friends but Samantha's uneasiness begins with the suspicious death of Blake's boyfriend. Samantha sets out to prove her daughter's innocence, discovering Chloe's ultimate plan is to "adopt" Samantha as her "mum".

A grieving man relocates his two teen daughters to a charming town and into their dream home. Quickly the dream becomes an inescapable nightmare.