In 'Whose Shadow Is That?', players assume the role of a young detective in a bustling metropolis steeped in secrets. As they navigate a world where shadows have minds of their own, players interact with eccentric characters and gather clues about a mysterious figure whose shadow appears at crime scenes. The game intertwines narrative choices with a branching plot that changes based on player decisions, leading to multiple endings. Each shadow tells a story, and players must piece together the truth while avoiding being ensnared by the very shadows they investigate.