American Monster

On the outside, killers and kidnappers are very often extraordinarily ordinary, hiding in plain sight. The nice guy next door with the pretty wife and kids? Is he a secret killer? The chatty guy on the till at the supermarket? Is he a psychopath with a dungeon under his house? The terrifying thing is it's impossible to know because on the outside killers and kidnappers are often the ultimate regular Joes. For the first time, American Monster gets closer than ever to some of the country's most shocking and surprising crimes, such as a serial killer stalking the streets of Phoenix, a ruthless assassin disposing of everyone who stands in his way, and a suburban marriage breaking apart, with a body count. In this six part series, each case file is filled with never-before-seen 'off duty' home movie footage of the killers interweaved with the stories of their astonishing crimes. (Discovery Networks)