From horror slashers like Psycho to methodical psychological thrillers like Zodiac, these are the all-time best movies about serial killers.

One of the scariest, most disturbing serial killer movies ever made is now streaming free. It's your chance to catch this horror classic.

"Kidnapped By a Killer: The Heather Robinson Story" airs today, June 67. Get streaming deals to watch the Lifetime original movie for free.