Upon moving into the run-down Spiderwick Estate with their mother, twin brothers Jared and Simon Grace, along with their sister Mallory, find themselves pulled into an alternate world full of faeries and other creatures.
Soon after moving in with her aging aunt Dora, Adele meets Beth, seductive and mysterious, who tests the limits of Adele's moral ground and sends her spiraling down a psychologically unstable and phantasmagoric path.
