The events of the melodramatic series "Angel v serdce" begin in the summer of 1985 in a small and cozy seaside town. The young couple, Ksusha and Petya, graduate from school together and dream of a happy future together. But an unpleasant incident occurs in Ksusha's family. Her father is accused of financial fraud and is sent to prison. The family friend, Grigory Dmitrievich, a high-ranking party official, agrees to help, but on one condition. Ksenia must marry his son, Dima.