As someone with a slight knowledge of the actual details of the Tate/LaBianca murders, there is much to learn from this documentary. And the writer and narrator have apparently studied the events and those involved quite thoroughly. In fact they almost provide more background on the murder victims than Manson and his "family." Some of it seems non essential so you must have patience for the actual murder events to properly unfold. Also, as was said by another reviewer, the very beginning seems to be nothing more than an opportunity for the narrator to sell his tour business and himself. Throughout the rest he guides us to various locations in California in relation to Manson and the murders, during which he provides a substantial amount of anecdotal, personal commentary. Luckily for him he is amiable enough but i did find myself wishing for a more properly produced documentary for which the budget obviously would not allow. Or maybe it was intentionally written that way. Regardless, there were plenty of genuinely creepy moments on location and enough information to keep me interested.