On a college trip to remote Northern forests, one of the students - Marina - encounters a burial site of an ancient witch, and is possessed by the spirits of the past. Now Marina and her companions must take part in the millennia old fight between good and evil, involving lake witches, sorcerers, and ancient forces from the myths.

Every day, they steal your strength, your emotions, your love. We call them the Shadow. Work like us - to deliver them back to the Dark World. Impending disaster, and humanity can be at the mercy of darkness ... And only we can keep the balance