Nastya and Sergey have been married for three years, live soul to soul and are an excellent team of synchronized swimming coaches. But they still do not have children, although both dream of replenishment. After long attempts, the couple is examined by a doctor, who informs them that they are incompatible and only one of them can be the birth parent of the child. One day, after a charity event, Nastya comes up with the idea to adopt a boy from an orphanage. She rushes home to persuade her husband, but Sergey rejects the idea. Contradictions lead them to infidelity and separation.