Oksana Kovalchuk, a successful cardiac surgeon at a private clinic, is developing a project to reform the hospital's receiving ward after the negligence of her father died. After approval of the project by city officials, Oksana Kovalchuk leaves the practice in a private clinic and calls with her former classmates: Nazar Bulba and former husband, neuroscientist Boris Zuyev, who is set to return his former wife. Talented surgeon Maxim Zakrevsky, Oksana's first love, also enters the hospital's reception room #13. He came to stay for some time in the ward, until the scandal erupted after an unsuccessful operation, which left the patient paralyzed.