Desc: Seven Sins: 7 Performances during 1989 China Avant-Garde Art Exhibition: Directed by Wen Pulin. With Wang Deren, Zang Honghua, Wang Lang, Xiao Lu. In 1989, a group of avant-garde artists who had collaborated in private for years received permission to organize their own exhibition at the National Art Museum of China. However, one of the terms was to exclude performance artists from participating. The seven artists who were left out took action. At the opening ceremony, their lives changed as the sounds of gunfire rang out.