Prosperous wife of a lawyer and mother of charming twins Anna Moiseeva. Socialite, playgirl and confirmed bachelor Eva Shakhovskaya. Scientist, gray mouse Maria Korchagina. Heiress to a huge fortune, unlucky in love Katerina Berdnik... These women were very different and would hardly have met. But they learned about each other when it turned out that they were all related to the wedding diadem of the Romanov dynasty, which was lost one hundred and fifty years ago. It was incredibly expensive, was wanted by many, and the one who wanted to get it more than others was killed! But the search continued...