Trail on Wet Asphalt

Returning from work, design engineer Igor Panteleevich Pozharsky gets hit by a car. Right in front of his son Kolya. The 'Victory' car sped away from the place of the accident, but the boy managed to notice that a woman was behind the wheel. His father had a briefcase that strangely disappeared as soon as random witnesses arrived to help. They all unanimously claimed that it was not a 'Victory', but an 'M' model, driven by a man in military uniform. Where does such a discrepancy come from? What if this accident wasn't random… Together with his friends, Kolya decides to conduct his own investigation to find out who and why targeted his father…