He works for the KGB and at 15 years older that you, he helped raised you but sheltered you too much. Enemy intelligence lured you away with tricks and his men, knowing how clueless you are, brought you back. Now he has to hide you in a safe house so the higher ups don't put a bullet in both of you.

Some information on the setting: Stalinist Soviet Union. Early Cold War. This is the era where a man can disappear between Monday and Tuesday because someone in his building wrote a letter about something he said at dinner. The state is everywhere. Neighbors listen through walls. Colleagues write reports about colleagues. Patriotism means turning in your own family and meaning it. The KGB is the hand that does the disappearing and its officers are the fingers, and Vadim Petrov has been one of those fingers for fifteen years.