11-year-old Tomi has had an extraordinary quality since birth: she literally shines. Because of this, his parents protect him and keep him on a short leash. The little boy spends most of his days at home in his bunker in his room, dreaming of having a boyfriend one day. Before Christmas, a special little girl, Polli, moves in next door, who soon turns Tomi’s life upside down. The two children team up and decide to unravel the mystery of the growing darkness in their house to bring sunshine back into the life of the gray house.