Set in a surreal, ever-shifting metropolis, players assume the role of an unwitting heart-thief who awakens to find themselves in possession of an extraordinary and magical heart. This heart allows the character to tap into the emotions, experiences, and memories of those around them—their pasts becoming viscerally vivid. As players navigate the city's labyrinthine streets, they uncover the secrets of different citizens whose hearts they've tasted, unraveling a series of interconnected mysteries. Engaging in human connections and moral dilemmas, players must decide whether to use the heart’s power for good or for selfish gain. Each choice shapes the narrative, leading to diverse outcomes and a climactic confrontation with the original owner of the heart.