For the first time, we get closer than ever to some of America's most shocking and surprising crimes. Filled with never-before-seen footage of these devils in disguise, we'll see them in home movies with their kids, in school musical performances, at church, in weddings... Stories will take twists and turns, displaying astonishing crimes with behind-the-scenes footage of these killers at their most innocent stage. From a serial murderer who stalks Phoenix streets, to a ruthless assassin who disposes of everyone who stands in his way, to a suburban marriage's deadly split... viewers will see every one of these American Monsters revealed.