In a world where shadows can detach from their hosts, players step into the shoes of a detective investigating a series of mysterious occurrences linked to shadow Theft. Each shadow holds secrets and memories of the person it belongs to. As the player delves deeper, they must interrogate various characters, manipulate light and darkness, and use the shadows to unlock the truth behind disappearances and identity thefts. The narrative twists and turns based on player choices, leading to multiple endings that hinge on which shadows are saved or lost in the journey.