Возвращение Мухтара S11E22 - Бриллиантовый дым

A famous ballerina in the past is found unconscious by her distant relative Nellie, who came to visit her. The safe in the landlady's apartment was open, and the ballerina's jewelry was gone. The victim's relatives tend to blame Nellie herself for the theft. Then, without guilt, the guilty woman turns to Katya for help, whom she has known for a long time.