In a remote mountain village in the northwest of China, close to a nuclear test zone, the poverty-stricken Xiaolin sells his blood to pay his daughter’s school fees. Together with his wife Xiaojuan, he tries to set up a business. At first that seems very lucrative, but then fate strikes: it turns out that both Xiaolin and Xiaojuan are infected with HIV. Just like thousands of other poor people, who illegally sell their blood to be able to buy something as essential as water. Black Blood, supported by the Hubert Bals Fund, tells a small and personal story against the background of an ecological disaster. In the valley where the film was shot, there is also in reality no water anymore. ‘Water is more valuable than blood and many villages have already been deserted,’ according to Zhang Miaoyan. Zhang films the poor odd-jobbers for more than two hours in hypnotic black-and-white and - very briefly - in equally stunning colours.