Hidden from society by her father until she is a teen, Anna (Bel Powley) knows little about the outside world until she is taken in by the local sheriff Ellen (Liv Tyler), and her 16-year-old brother Ray. But being under Ellen’s protection doesn’t stop Anna from being haunted by thoughts of the terrifying Wildling, the child-eating monster from a fairy tale her father used to tell her.  As she tries to deal with fitting into the chaotic new world she is discovering, Anna soon learns that the closer she gets to the Wildling and the more she discovers about its mysterious origin, their lives are more intertwined in the most terrifying of ways…