The synopsis: A 17th century family is banished from their Puritan community and forced to live on the outskirts of the woods, where they're promptly terrorised by a witch.
The twist: After her whole family dies or disappears in variously graphic ways (ex: the witch steals the infant brother, chops him up, and rubs his blood all over her body), the family's eldest sister discovers that their goat is actually the devil, and is seduced by him into becoming a witch herself. She then strips down, walks into the woods, finds a group of other witches dancing around a bonfire, and flies naked into the sky. Goodbye, forever.
The amount of damage it'll do to your psyche: 🔪🔪