Warsaw, December 13th 1981. Martial law shuts down the country. Overnight, a country turns into a prison. Taxis have been replaced by tanks. Citizens are treated like criminals. And visiting British Professor Joan Andrews finds herself trapped. After witnessing the murder of a young student by the secret police (the "Crows"), Joan herself becomes the target. The Professor runs like a rat through the maze-like streets of Soviet-era Warsaw until she is forced to stop and take a stand.