Taking place twenty years after that frightful night on October 31, 1978 in Haddonfield, Illinois, Halloween H2O tells us what happened to Laurie in 1987 when she suddenly disappeared, leaving everyone to believe she was killed in an accident.

Now, this Halloween, Laurie's back and so is her demonic brother Michael Myers for what may be the best and final chapter to a Halloween killing spree that has spanned over a century in terror.

Having changed her name and identity, Keri Tate now runs a private school where she's become an alcoholic trying to cope with the evil that still haunts her from the past. Keri must now protect her son John from the one man whom she so desperately tried to forget...Michael Myers.