The story takes place in Moscow, during first half of the 1980s, at the height of Cold War.
Sergei Gregoriev, high officer of the KGB decides to rebel against current government and bring down existing Soviet regime. Discreetly he manages to make contact with Pierre Froment, French engineer working in Moscow and gradually begins conveying top secret data which instantly drew attention of western intelligence services. François Mitterrand himself was informed on this and decides to consult with US president Reagan.
For two whole years Gregoriev managed to hide his activities from KGB asking nothing in return, since he considered money to be a capitalist invention. He simply followed his destiny so that a new world might dawn for his countrymen and his son.