A little girl named Katherine saved one boy's life during the bombing in Leningrad while under the Siege in WWII. The boy cannot speak yet. So she gave him a name Seryozha and provided him with food and care. She was later adopted by the boy's father, who recognized his son.
Lovers Edgar and Lucia dream of happiness, but Lucia's brother Henry is preparing her marriage to another man. He forces his sister to sign a marriage contract and enter into an open fight with Edgar.
