Explores the music motive to the Manson murders and uncovers Charles Manson's relationship with Beach Boys' drummer Dennis Wilson and record producer Terry Melcher.
| Actor | Role |
|---|---|
| CColin MoneymakerNarrator (voice) | Narrator (voice) |
 Brian WilsonSelf (archive footage) | Self (archive footage) |
 Carl WilsonSelf (archive footage) | Self (archive footage) |
 Al JardineSelf (archive footage) | Self (archive footage) |
 Mike LoveSelf (archive footage) | Self (archive footage) |
 Bruce JohnstonSelf (archive footage) | Self (archive footage) |
 Dennis WilsonSelf (archive footage) | Self (archive footage) |
 Charles MansonSelf (archive footage) | Self (archive footage) |
 Terry MelcherSelf (archive footage) | Self (archive footage) |