When high school student Audrey Perez moves to a town that's supposedly home to a haunted mansion, she and a few of her new friends decide to investigate. Audrey is quickly swept up in a macabre mystery and eerie adventure that holds the fate of the Haunted Mansion's 999 happy haunts in the balance. A storm is coming—both literally and figuratively—and it'll be up to Audrey and her friends to save the Mansion—and its ghosts—before it's too late. But can Audrey do so while dealing with her own anxieties and while caught in a love triangle between her boyfriend and the enigmatic Sterling—who just might be a ghost? Read on, foolish mortal, if you dare . . .