In a world where shadows gain sentience and can walk away from their owners, players take on the role of a quirky shadow investigator, tasked with solving the bizarre cases of missing shadows around the bustling city of Nocturne Heights. Each case reveals hidden secrets about both the victims and their absent silhouettes. The dynamic narrative changes based on the player's choices, leading to unexpected twists and dark humor as they unravel the stories of the shadows, confronting questions of identity and existence along the way.