Due to health problems, Landysh grew up under special care, surrounded by the care and love of wealthy parents Albina and Ruslan Abdulov. One day, the helicopter in which Ruslan was flying with his friends on a hunting trip crashed, and they couldn't find him. Abdulov's competitors begin to fight for his business. Landysh is so worried that her health is deteriorating sharply. The doctor advises Albina to hire a nurse and recommends Lida Zvonareva. Over time, Lida and Landysh become close friends, but they do not even suspect that they are connected by a long-term secret.