A noir-styled puzzle platformer in which you play as a mysterious woman with the ability to interact with shadows. By approaching well-lit surfaces, you can merge with your shadow and use other shadows as platforms to reach otherwise unreachable areas. This central gimmick combines with a few other mechanics (such as the ability to carry objects into the shadows and resposition light sources to move and resize shadows) to enable a series of platforming challenges and puzzles that you solve in order to help a little girl save her family.