There was a time, when students Alena and Nikolai were passionately in love with each other. But the girl's serious illness, movement of her family to another city and intrigues of her rival destroyed a teen-age romance.
10 years later, each of them has their own life and their own family – Alena is married to a neurosurgeon Savelii, and Nikolai is married to Marina. However, unexpectedly, Savelii is offered an enviable position in Alena’s hometown. Former lovers meet again and understand that the old feelings have not completely faded away. But the awakening of their love makes all four people miserable in this love square.