Troop No. 731 was a secret unit of the imperial armywhich tested biological weapons during WW2. Although its cruel experiments on living people produced thousands of casualties, this activity is still denied by a number of Japanese historians. This documentary reacting to thegrowing historic revisionism consists of two parts: in the firstone history is presented from the Chinese perspective, thesecond part offers the Japanese interpretation. Usage of thesame shots in both parts of the film ironically demonstrates the potential to misuse any film images.The film was awarded as the Best Documentary Film of 2007 by Woody Vašulka at Jihlava International Festival.