The quiet town of Zarechny is shaken by a series of brutal murders. Investigator Yana returns home to solve the crime and overcome her inner demons. The girl's radical methods and personal interest endanger the investigation, and police Captain Denis joins the case. The trail leads the partners to a local orphanage. But the closer they get to the killer, the more they try to stop them. Someone is ready to do anything to keep a terrible secret forever in the past.