Inspired by an illustration from Michael Sowa. A door stands in the middle of a lake. A man passes by and stops there. It seems that the man sees mirror-like illusions of himself through the door while his dog stares at the water. They are supposed to be companions of each other, yet both of them look lonely. What do they really see? Are they real or a part of the illusions? Are we real or just another layer of the illusions?