In a world where shadows have personalities and can move independently, you play as Echo, a witty shadow detective trying to solve a series of bizarre crimes where shadows are the key witnesses and suspects. As Echo, you navigate through various environments—from bustling city streets to eerie abandoned buildings—interacting with both shadows and their owners. Your choices affect the outcome of each investigation, leading to multiple branching storylines and endings. Solve puzzles, piece together clues, and uncover dark secrets about the relationship between beings and their shadows. Can you bring light to the truth before the shadows read too deep?