Tony has been glowing since the day he was born and it causes him a lot of trouble. Just before the Christmas, a new odd girl with thick glasses moves into Tony’s house. Shelly has a strange way of expressing herself. Tony is fascinated by her but he is also being cautious at first. Together with Shelly’s flashlight, they explore their house and they are slowly getting to know each other. The kids have to join all their efforts to figure out who’s behind the circuit of dark cracks that sucks out all the light bulbs, even the daylight. It must be because of the “Spirit of the house”. A film about being different, about friendship, and first loves… But above all about light and darkness.
On New Year's Eve, just a few hours before the breakup of Czechoslovakia, the Varchal family meets in Banská Bystrica in front of the church to baptize the newest addition to the family, little Zuzka, the daughter of Petr and Helena. However, Peter misses the baptism, because he got his hands on the file of his father Daniel, from which he learns that his father was led as an agent of the ŠtB. When Peter finally arrives home, he immediately confronts Daniel's father with his discovery. Daniel's heart can't handle it and he has a heart attack. His life is saved by the quick intervention of a family friend and the rest of the family. Daniel is taken to the hospital. After Peter reveals the reason for his father's collapse, more and more Varchal secrets begin to emerge, and the argument about the father and his motives gather momentum. As they leaf through the file together, the family is shaken to its foundations with each subsequent page.