After Mark Hogenkamp (Steve Carell) was beaten by five teenagers, he is in a coma for days. When he awakens, however, he can not remember any details of his life. He is taken home by his family and after a while he begins to build a model of a Belgian village from the time of the Second World War as a form of therapy in his garden. In addition, he designs characters based on his family and friends, who revive the village and with whom he experiences fictive adventures. But the further he delves into his fantasy world, the more he moves away from reality.