The Key to Our Mystery

Little Tanya was raised by her father as if he were preparing her to be a superagent, but one day he disappeared, and the girl ended up in an orphanage. Growing up, Tanya goes to serve in the police. She is a physical training instructor but is always ready to help her colleagues with investigations, even if it's just about the disappearance of a student's laptop. However, over time, Tatiana begins to suspect that the disappearance of the laptop triggered a series of murders that occur one after another around the student. It is urgent to find it to stop the crimes.