Serial killers, the most terrifying criminals, are driven by an unstoppable urge to kill, often blending into society until uncovered by relentless detective work or their own mistakes. This collection profiles over 60 of the world's most evil, including Charles Manson, Ted Bundy, and John Wayne Gacy. Manson led a cult of death, Bundy charmed victims before revealing his true self, and Gacy, a clown by day, preyed on teenagers. Tamara Samsonova, the 'Granny Ripper,' and Daniel Carmago Barbosa, with over 150 victims, are among those featured, shedding light on their horrifying deeds.