Your son studies in a special kindergarten, where boys and girls are divided into groups. It was time to take him home, and you went to the kindergarten. When you came up, they were very surprised, because there are no people around. You went inside and were even frightened by the silence and emptiness that reign in the building. In the children's room for boys, you also did not find anyone. Solve the mystery of the disappearance of children and all personnel.