Cooper and his girlfriend Amber are looking for shelter from a storm when they come across Ghoulhaven Hall, a mansion owned by Baron Von Ghoul. When Cooper calls him a creep, Von Ghoul kidnaps Amber in retaliation. Cooper chases after Amber, encountering the many ghoulies inhabiting Ghoulhaven Hall. Crivens, the mansion's butler, agrees to assist Cooper, guiding him through the manor. Cooper eventually finds Amber, but before the two of them can escape, the mad scientist Dr. Krackpot appears and transforms Amber into a hideous ghouly. Cooper asks the cook Ma Soupswill for help, and she tasks him with collecting three ingredients she needs to synthesize a cure. Along the way, he is aided by the mansion's other inhabitants, including groundskeeper Fiddlesworth Dunfiddlin, Soupswill's skeletal assistant Mr. Ribs, and cleaning lady Barbara Buffbrass. After gathering the ingredients, Soupswill gives Cooper a jar of the cure. When Cooper pours the cure on Amber, Soupswill is shown to have mixed up one of the ingredients, resulting in Amber transforming into a bigger, hostile ghouly. Cooper is nearly overpowered by Amber, but Soupswill arrives and applies the correct cure, transforming Amber back to normal.