After breaking up with her husband, 19-year-old single mother Linda Kasabian seeks refuge with the Manson Family at Spahn Ranch and witnesses their indoctrination techniques. After attending the killings at the Sharon Tate house she flees Spahn Ranch but the Manson Family keeps her daughter in their custody, knowing that this will force her to return. Her daughter and all of the other children are taken by Social Services during a raid on Spahn Ranch after Manson burns municipal earthmoving equipment that he believes is being used to make it harder for him to find the "bottomless pit" that he believes is described in Revelation 9 and "Revolution 9". The case is dropped due to an improperly executed warrant but confessions from Sadie and interviews with Kitty lead investigators to connect the Hinman, Tate, and LaBianca killings and issue warrants for the members of the Manson Family. Joey Dimarco and Paul Watkins explain to the detectives how the words "Helter Skelter" and "Pig" found written in blood at the crime scenes are related to the worldview of the Manson Family derived from passages in the Book of Revelation and the lyrics of the Beatles, thereby connecting Manson's philosophy to the murders themselves as acts intended to spark a race war he dubbed "Helter Skelter". Manson dismisses his counsel and represents himself at trial but is deemed unfit after disrupting proceedings. Linda Kasabian is given an immunity deal and ends up giving detailed testimony at trial. The accused members of the Manson Family are ultimately convicted of the murders but California repeals the death penalty in 1972, making them all eligible for parole.
