Who knows what wickedness resides in the hearts of children?
Lukas Janssen is socially awkward. Bullied by his middle school classmates and neglected at home, he escapes into his own fantasy world to cope with the death of his father. But fantasy blurs with reality when a spectral figure in the woods takes physical form and begins brutally stalking the young boys tormentors. The killer's obsessions with Lukas' soon turns toward home as his family becomes the target of this unstoppable.