Set in a sprawling urban metropolis at the zenith of a twisted festival, players step into the shoes of a cynical amateur detective who must navigate the city's tangled web of eccentric characters and hidden agendas. Armed only with their sharp wit, a pocket notepad, and the ability to converse with shadows—sentient half-forms cast by the city's most notorious figures—the player uncovers a plot involving a powerful artifact that could shift the balance of light and dark in the world. Choices made throughout the game affect relationships, alliances, and even the shadows themselves, leading to multiple endings and revealing the true nature of each character's intentions.