In the follow-up to Let Me In, Jessica finds herself caught in a destructive spiral with her demonic twin, Tess. As they venture down the road together, Tess introduces Jessica to a dark ritual that involves luring in three stranded men. Eager to please Tess, Jessica joins forces with her to entice and manipulate the men, satisfying the initiation requirements. With the initiation accomplished, Jessica's appetite for chaos grows, prompting Tess to set their sights on a new target: a unsuspecting family consisting of Linda, Teri, and Craig. Together, they embark on a mission to corrupt and recruit these unsuspecting individuals into Tess's sinister army of duplicates...