Гарпия с пропеллером

One morning, by no means perfect, a friend of Lena Gladysheva came to Dasha Vasilyeva, a lover of private investigation, and accused her of secretly slipping twenty thousand dollars into the mailbox. But it was not Dasha! Lena's husband Oleg disappeared a year ago under mysterious circumstances. Lena was in poverty at first, but she proudly refused to help ... As soon as everything began to improve, and bam! Someone planted money on her allegedly on behalf of Oleg. The friends decided to find out from the concierge who had planted the envelope. She said that it was the postwoman Sonya. While Dasha was talking with Sonya, some thugs killed the concierge and seriously injured Lena. The postman described the man who gave her the money. It looks like it was... Oleg. Had he run away from his wife and son? Why?.. The cops do not catch mice, they consider what happened a mere coincidence. Well, nothing, Dashutka will wash them all, especially Colonel Degtyarev! She will find Oleg - alive or dead!..