Olga Lemesheva, a sweet, kind girl, lives in a small apartment with her mother. The family runs a small business, a cozy café. But the profits from the business are mere pennies, and the family is constantly short of money. Recently, her mother has become increasingly alcoholic, and her daughter's health has deteriorated significantly. The problem is that Olga has a congenital heart defect. Her condition is currently dire, and doctors offer no guarantee. She needs a donor heart transplant, but she has neither a donor nor the money for the operation.