This movie captures the lives of miners in small coal mines in the Qilian Mountain area of Qinghai Province. At 3600 meters above sea level, the air here is thin. Miners in the small coal kilns labor hard in a working environment without any protection, and usually get silicosis after 5-10 years of work, thus losing their ability to work. If they die in an accident, their families receive only meager compensation. This is a true record of the survival of China's grassroots laborers in the early 1990s.

On August 8, 1966, the Central Committee of the Communist Party of China adopted the "Sixteen Articles" of the Cultural Revolution. Soon after, Liu Wenhui, a young mechanic in Shanghai who had been labeled as a Rightist in 1957, wrote pamphlets and leaflets clearly opposing the Cultural Revolution, the "Sixteen Articles," authoritarianism, and tyranny. Liu was arrested on November 26 of that year. Four months later, he was executed for "counter-revolutionary crimes." Liu Wenhui became the first person known to have been publicly shot for opposing the Cultural Revolution. The author of this book, Liu Wenzhong, was Liu Wenhui's co-defendant and survived thirteen years in prison. In this autobiography, Liu Wenzhong describes in detail not only Liu Wenhui's ideology but also how he was killed by the tyrannical government.