Boats with dead women, whose bodies are strewn with water lilies, are found on the lakes surrounding the small town. Police believe that this is the work of a maniac, but can not find the killer. The locals are horrified: according to legend, the spirit of the drowning bride lives in the lakes, and he kills the girls. Oksana Bila, an investigator on particularly important cases who specializes in finding serial killers, comes from the capital to investigate mysterious crimes. But no one knows that Oksana has a very special, personal interest in the "case of dead lilies" ...