In 1999, tragic events threatened to rip apart a close-knit circle of friends and the small town of Millwood. Twenty years later, a new group of Millwood High students is hunted by an assailant known as "A," who threatens to make them pay for their parents' past transgressions and sins of their own.

A family moves back to Miami to take care of its widowed abuela. After moving into a haunted house, the family learns the intentions of the ghosts that inhabit it.