Дашу Васильеву and colonel Дегтярева was called on an anniversary by their good friend Fedor Мухин. Guests went for a walk with a scope, ate, drank, made merry, enjoyed a concert with participation the stars of the world stage. Мухин, silk-stock, is not nearly avid, he spends money easily. And man good, perfectly behaves to Elena, full sister of the wife Svetlana. Loves Nina, daughter of sister-in-law from her first mismarriage, ни in what refuses neither to her nor to it to daughter Кате. Happy family rich is successful. During a holiday to Svetlana is badly. So badly, that she is hastily driven away in a hospital. It turns out there, that a woman was poisoned! And it was obviously done by someone from it. Fedor categorically does not wish to attract a police, find a criminal he asks Дегтярева, that owns a detective agency now. Well and how that must manage without Даши Васильевой? And certainly, Даша will find a criminal, even if for this purpose there will be to transform a century of electrician her!