In 'Nightcall: Whose There?', you step into the role of a reluctant paranormal investigator named Alex, who receives a series of eerie phone calls each night after moving into a haunted Victorian mansion. Tasked with unraveling the mystery behind the calls and the chilling tales of the house's past, players navigate a labyrinth of choices, engaging in conversations with ghostly inhabitants, skeptical townsfolk, and otherworldly beings. The drama unfolds as shifts in the story reveal dark secrets, unexpected allies, and mind-bending twists, leading to multiple potential endings based on your decisions.