THE SAND STORM (沙尘暴). It's described as "a dystopian science fiction film set in the not-too-distant future. It is a low-fi sci-fi short, made in China, telling the story of a city on the brink of a water shortage through the eyes and interactions of four main characters: a woman, a man, a lover, and a water smuggler."
The film was shot in secret in Beijing during an air pollution spike that required the crew to work with face masks.
AI WEIWEI (艾未未) - HU JIANING (胡珈宁) - LI NING (李宁) - BAI YAO (白瑶) - in order of appearance.