A wild, true-crime ride that delves into the sick and sadistic methods of the worlds 10 worst serial killers. In this gruesome special, we rank the most notorious serial killers beginning at number 10, until we reach the most sadistic sicko of all! Twisted: The 10 Most Sadistic Serial Killers is a Top 10 special for true-crime lovers! With expert interviews and in-your-face recreations, this gruesome show ranks the worlds most notorious serial killers until we reach the most sadistic sicko of all!