The 1956 Revolution has fallen. Terror reigns. Appointed by the Soviets, the new prime minister - a very paranoid Janos Kadar - orders that each and every National Security officer's loyalty be tested according to new and rigorous directives.

Jung is a super-ambitious cultural NS officer living undercover as a private teacher. Jung's apartment acts as a safe house where he meets agents and informants on a regular basis. Jung's task is to gather information and forward it to his superiors. Marko is Jung's immediate superior, and also his only friend.

Now, Marko, a war hero and a legend amongst the officers, is ordered to monitor Jung's apartment and activities for a day to test his friend's loyalty to the new regime. What sets out as routine surveillance takes a wild turn when Marko uncovers disturbing secrets in Jung's life; secrets that can easily destroy the careers of both men.