In 'Whose Heart Is It, Anyway?', players assume the role of Ollie, a hard-nosed private investigator thrown into a surreal mystery after receiving an anonymous package containing a talking heart. As Ollie navigates a bizarre world filled with eccentric characters, including an overly dramatic ghost, a cynical talking cat, and a neurotic heart surgeon, players must piece together clues, influence the heart's choices, and solve the riddles of relationships that lead to both hilarious and sobering truths about love and loss. The interactive narrative evolves based on the choices made, leading to multiple endings intertwined with zany twists that redefine what it means to have 'a heart' in this quirky universe.