This DVD contains approximately 6.5 hours of interviews with various serial killers and one mass murderer (Ronald DeFeo Jr, who one night shot his entire family while they slept, "inspiring" the movie "The Amityville Horror"), and various law enforcement officers, lawyers, psychiatrists, etc who were involved in the cases.
Some of the serial killers are very well-known, such as Ted Bundy, Kenneth Bianchi ("The Hillside Strangler") and Henry Lee Lucas ("The Confession Killer"), whilst others are not so well-known. The segments I personally found most interesting were those on Ronald DeFeo Jr, Ted Bundy and Kenneth Bianchi. I had previously know little about Kenneth Bianchi, and I found the descriptions of some of his murders particularly disturbing, especially those relating to the two young girls he murdered.
As someone who has thought of myself as having good intuition in relation to people's characters, the aspect of this movie and others like it that I find most unnerving is that the majority of the killers interviewed appear quite "normal" and articulate, even gentle or docile in some cases (e.g. Arthur Shawcross, "The Monster of the Rivers"). Though admittedly, there are a few you would definitely not want to take home to meet your mother (e.g. Douglas Clark, "The Sunset Slayer")!
Unfortunately, there is one aspect of this DVD which lets it down considerably, and that is the music. It really is just not scary, is irritating and does not suit the subject (especially that funky slap bass sound)! Furthermore, it is repeated at the beginning and end of each segment. If the DVD could somehow be reproduced with different, more appropriate music (and not repeated at the beginning and end of each segment), it would be greatly improved. Watching this DVD reinforced to me how important the soundtrack is in the overall quality of a movie or documentary.
If you want to purchase a really good DVD about serial killers and psychopaths, I would strongly recommend "Serial Killers - Profiling the Criminal Mind" (also listed as "Serial Killers 2-Pack") which includes stories on John Wayne Gacy, Jeffrey Dahmer and Charles Manson, and includes interviews with Manson, Patricia Krenwinkle and Leslie Van Houten.