Manson's name became synonymous with evil after his arrest surrounding the 1969 murders of actress Sharon Tate.
RELATED: Hilary Duff transforms into Sharon Tate for new film
Now this new UK doco is sharing 100 hours of original footage and never-before-seen interviews with the Manson family.
The Lost Tapes explains how the infamous Manson started a cult within a commune of people, including four of his followers who ultimately committed the murders of Sharon Tate and four of her friends.
According to a release on the show, the series "brings to life Charles Manson's world and how he assembled a group of young followers in a community."
Creepy.