According to Harold

After his shocking death, Harold finds himself grappling with the afterlife as his uncle encourages him to move on. Instead, he chooses to investigate his own murder while navigating his new existence as a spirit, encountering both fellow ghosts and new residents in his home. As he adapts to his spectral world, Harold must confront a malevolent force known as "the Dark One" that threatens his haunting grounds and the truth behind his demise.