Mario, Hero of the Mushroom Kingdom, learned about a rather terrifying rumor. A mansion out in the woods that used to belong to an old family, the Aduraice Family. People have just vanished by going to it. Mario takes it upon himself to discover the mystery behind the mansion and find out where the missing people went.
But when he discovers a mysterious Music Box and awakens restless spirits, he, his brother Luigi, and a mysterious investigator named Riba must survive the horrors.
