In a merry and lively Halloween parade party, Mike (Nicolas Cage)'s son disappeared unexpectedly. In the days that followed, countless visions occurred around Mike one after another, as if reminding him that his son did not leave, but was conveying something to his father in another way. In order to find out the truth of the incident and find his beloved son, Mike found his separated wife Kristen (Sarah Wayne Callies), and the two jointly launched an investigation. Over time, the couple gradually approached a creepy secret center. At every Halloween party, there is an evil ghost lurking, and their only purpose is to kidnap children. At the same time, Mike must rescue his kidnapped son in a very short time, otherwise, his son will be lost in darkness forever.