On January 27, 1970, Wang Peiying, a cleaner at a kindergarten in Beijing, was sentenced for counter-revolutionary crimes at a 100,000-person public trial held at the Workers' Stadium in Beijing. She was then taken to the execution ground along with a dozen other political prisoners to be executed by firing squad. Wang Peiying was strangled to death in the torture wagon because she preferred to die rather than give in and shout slogans. Forty years later, her daughter, Kexin, began to search for her mother's story. Through her mother's coworkers, friends in distress, and the task force, she gradually discovers her mother's experience as an active counterrevolutionary. In order to protect her conscience, Wang Peiying chose to stand up for her dignity and freedom to tell the truth, and willingly endured brutal torture. The documentary reflects the brutality of the Cultural Revolution and the destruction of humanity.

Through a large number of Cultural Revolution paintings, this film shows the official aesthetics at the time of the Cultural Revolution and the bloody violence and authoritarianism behind these paintings. The film features interviews with painters and Red Guards of the era as well as collectors and researchers in China and the UK today.

Wang Nianyi is an expert on the history of the Cultural Revolution in China. Early on, he suggested that Lin Biao's defection was forced by Mao Zedong. This has long been considered a taboo view in China.