In 'Hell-O-Who's There?', players take on the role of a cynical, down-on-their-luck paranormal investigator who receives a series of mysterious phone calls from an entity claiming to be a victim of a bizarre, unsolved murder. The game unfolds through text-based dialogue, where players must navigate chilling locations, gather clues, and make harrowing choices that affect the game’s outcome. Each call from the entity pulls players deeper into a web of deceit, supernatural occurrences, and a disturbed town's dark history, blending humor and horror as players balance their skepticism about the supernatural with the growing evidence that something sinister is lurking.