As Ellison analyzes the films, he notices a recurring demonic figure named Bughuul (Mr. Boogie), who appears in the background of every movie. With help from a deputy (James Ransone) and a local professor, Ellison learns Bughuul is an ancient pagan deity who consumes children’s souls and uses a corrupted child to murder each family.

In the attic, he finds a box of Super 8 home movies labeled with titles like “Pool Party,” “BBQ,” and “Lawn Work.” Each film depicts a family being brutally murdered in a different era and location. The final clip shows the same family he’s now investigating.

Sinister remains a modern horror milestone precisely because its scariest image isn’t the demon—it’s the idea that family movies are never safe to watch again.