Mía finds a pendant with an ancient symbol while rummaging through her recently deceased grandmother's belongings. That same night she is tormented by a nightmare in which she finds herself in the middle of a forest clearing. Her friends decide to go to Mía's grandmother's field to clear up for the weekend. One by one her friends mysteriously disappear and Mia ends up in the same clearing as her nightmares, where a strange secret is revealed to her.