Michael manages to free himself from Laurie Strode's trap to resume his ritual bloodbath. As she fights for her life from injuries from their last encounter, she inspires her daughter Karen, her granddaughter Allyson, and all of Haddonfield to rise up against the unstoppable monster.

After a young couple moves into a remote farmhouse with their infant son, the woman's struggles with postpartum psychosis begin to intensify... as the house reveals secrets of its own.