The key to our secret. Polyakova T., Polyakova A.

Father brought up little Tatyana as if he was preparing in superagents, but once the parent disappeared, and the girl was in the orphanage. Having matured, Tanya goes to the police. She is an physical training instructor, but is always ready to help colleagues conduct an investigation, even if it comes to just a loss of a student’s laptop. True, over time, Tatyana begins to suspect that it was the disappearance of the laptop that launched a series of murders, which, one by one, take place around a student. It is urgent to find it to stop the crimes.