The story takes place in Room 10 of the Sunshine Inn, a magical room in which what happened has long been beyond the scope of scientific explanation. In this room, every item is endowed with a special ability, and with an object, you can use it at will. When the news spread like wildfire, people from all walks of life gathered from all over the world to Room 10 with a variety of purposes. however, they had to give what they did not know, which could be physical and emotional. It could be life. By accident, the policeman Miller (Peter Klaus Peter Krause) gets a mysterious key, which belongs to Room 10. At the same time, Miller's daughter disappears in the room for no reason. Miller embarks on a journey full of danger and disaster in order to find his beloved daughter.