The series is based on the work of contemporary writer Alexander Tsypkin, "Moskovskaya Gorka" (Moscow Hill). The story revolves around a group of children who share their family secrets with their peers in the courtyard. On the playground, a man and a woman, both accompanied by their children, collide. The parents curiously and with interest observe each other, but they lack the courage to start a conversation. That's when their offspring come to the rescue, as they know too much...