Valentina Olesova, a young woman in her thirties, free, a lawyer by training, looked into her mailbox in the morning and found a letter from which she learned about the existence of her own aunt, her father’s sister, who was never mentioned in the family. Maria, this is the name of the newly found relative, lives in Prague. She was recently widowed and decided to return to her homeland. But to do this, she needed to enter into inheritance rights after the death of her husband and sell the clinic that her late husband owned. However, Maria dies under the wheels of a car, and the clinic passes to her husband’s deputy according to the will, which the husband allegedly drew up before his death. However, relatives and friends doubt that an accident occurred. Valentina, at her father’s request, goes to Prague and insists on resuming the investigation into the causes of Maria’s death.