After moving to Salem, Mass., teenager Max Dennison (Omri Katz) explores an abandoned house with his sister Dani (Thora Birch) and their new friend, Allison (Vinessa Shaw). After dismissing a story Allison tells as superstitious, Max accidentally frees a coven of evil witches (Bette Midler, Sarah Jessica Parker, Kathy Najimy) who used to live in the house. Now, with the help of a magical cat, the kids must steal the witches' book of spells to stop them from becoming immortal.