A woman desperately races to save her child after police place her hometown on lockdown due to an active shooter incident.

In Knockemstiff, Ohio and its neighboring backwoods, sinister characters converge around young Arvin Russell as he fights the evil forces that threaten him and his family.

Dr. Louis Creed and his wife, Rachel, move from Boston to Ludlow, in rural Maine, with their two young children. Hidden in the woods near the new family home, Ellie,…