The play is adapted from a real story and is based on the true story of the murder of the wife of director Roman Polanski. In Los Angeles in August 1969, under Manson's leadership, his followers slaughtered seven people in two days and wrote a terrorist message at the crime scene. In the late 1960s, great changes began to take place in the United States. The defeat of Vietnam, the economic crisis, the rise of the human rights movement. In this value collapse and chaotic society, many people are looking for a way to extricate themselves, so a group of people invest in the hippie culture that advocates "making love, not fighting", claiming to be "children of flowers" and coming from me with drugs and sexual promiscuity. There was a group of people who believed that Charles Manson was the incarnation of Christ, regarded him as the spiritual leader, joined his extended family and carried out his plan to build his ideal country. From the point of view of Charles Manson, the most famous demon in American history, and his family members, this film tells the story of their way of life and the process of committing a cruel murder.