Colette (Lily-Rose Depp) and Mackenzie (Harley Quinn Smith) are a pair of quirky sisters. During the day, they go to school together. After school, they come to work at a convenience store called Eh-2-Zed. Recently, the two sisters' biggest hope is the twelfth grade party that will be held soon. The two have made sufficient preparations for this party. One day, an ancient demon who has been sleeping for a hundred years awakens. It breaks out of the ground and keeps doing evil in the town. Its existence threatens to cancel the twelfth grade gathering, which makes the two girls anxious. They get acquainted with Guy (Johnny Depp), a legendary hunter who hunts demons. The three cooperate and use yoga secrets to deal with this cunning, powerful and evil opponent.