When Gabbie and her son, Travis, move into a beautiful old mansion only to find they are sharing it with hundreds of pesky ghosts, they reach out to anyone who could possibly help, not knowing they will all become trapped within its walls. The Hatbox Ghost has captured 999 souls and only needs one more to free himself from what binds him to the property, but a discredited academic with his own haunted past may be the only thing standing between the...