An unusual 3D platformer in which the player controls an entity that resembles a shadow. This is the soul, which in the game is called Shim. One day she is somehow separated from her master, after which she sets out to find him and reunite with him. The problem is that a person cannot be without Shim for a long time, and therefore the main character needs to hurry. Moving around locations is done by jumping, but the character can only be inside the shadow. Thus, when controlling Shim, the player will have to quickly make decisions and try to think through their actions in advance.