Parallel to the human world, there is a world of shadows that few people know about. But it threatens everyone. Every night, shadows try to invade our world to take over people's minds, consume their thoughts and leave only darkness in their souls. To avoid this, the guards protect people's minds by not letting the shadows pass through the portals. The problem is that most often people unconsciously open these portals themselves. And who knows how long the gatekeepers will be able to protect our world...