A woman was killed – young, beautiful, ambitious. Elena Arkhipova was the head of a key department in a branch of a large company, so the security service begins its own check. During the investigation, the investigator plunges into the quagmire of relationships in the team, where everyone has something to hide. The reasons for the murder and the opportunity to carry it out are available to several colleagues of the deceased at once.What are people willing to do to satisfy their ambitions, build a career or just take revenge? You will have to break your head over the solution of the crime, and during the investigation the most incredible secrets will come up.