Beneath this stone lie the remains of Meg Shelton, alleged witch of Woodplumpton, buried in 1705. After a messy breakup with his girlfriend, Alfie needs to get away for a while - so he decides to spend the summer holidays with his dad in a tiny village in the North of England. In the local church graveyard, he chances upon a boulder with a strange inscription - and meets Mia, who then tells him about the local superstition surrounding the stone. If you walk three times around the stone and say I don't believe in witches, Meg will come after you.' Alfie, in a reckless attempt to show his bravery, accepts the superstition as a challenge. He thinks the story is nonsense. But it soon becomes apparent that he's just made the biggest mistake of his life...