Down on his luck, the broke Arthur is grateful when he learns that his eccentric, recently deceased uncle willed him his lavish home. Arthur and his daughter Kathy move into the odd house only to discover that its elaborate series of moving glass walls exists to contain 13 spirits trapped within. It seems that Zorba was a collector of paranormal entities, but the supernatural spooks want out, while an alleged hidden fortune keeps the new owners, as well as some fellow treasure seekers and a veteran ghost hunter locked inside.