To Catch a Predator ran for three years, and its unique selling point seemed to be that it was, as Jimmy Kimmel once jokingly referred to it, “Punk’d for pedophiles.” The series touted its noble ...

As the opening credits roll in the new documentary “Predators,” a young girl speaks with a much older man on the phone. In a tiny, high-pitched voice, she says she’s nervous about talking to him; the ...