Heartstopper

When Polly receives a mysterious box, it comes with one rule: place inside something she needs, something she hates, and something she loves. If she doesn’t obey, it will consume everything—and everyone—she’s ever known.

Unable to conceive, a couple seeks to build a family with a young orphan, survivor of tragic childhood. But their act of love turns to horror when they realize the violence in their foster's past has returned to destroy the new family.

Cassie, a 13 year old Gothic girl, is trying to fit in at her new school. To entertain herself, she plays a series of pranks on the popular kids and her younger brother, Max. When she goes to a Halloween store looking for new tricks, she finds a little book called "The Evil Thing"

Still reeling from the tragic death of their mother, a teenage girl and her younger sister find themselves plagued by a sadistic presence in their house and struggle to get their grieving father to pay attention before it’s too late.