I can't believe I've just watched all the episodes in one day - it's already 4AM. Horrifying, fascinating, and absolute dark. You won't able to stop watching it. I've read a bunch of an article about him a years ago before I've watched this documentary. What he did was horrifying, and the worst - I did read other serial killers but for me he is the worst of the worst. We, as an audience can understand about the horror of him, the other side of him, how dark the time when it happened - and this guy don't deserve any credit at all. I felt goosebumps just saw him smile. Very well put, and descriptive. But between this documentary and wikipedia - the wikipedia describes more about how he did all the horrifying things than the documentary. People may find this documentary boring because Ted won't tell his secret at all in his tapes - he was very careful. This documentary can't tell how scary this man was but if we're going deeply into that - I think I only can watch one eps. Recommended.