I saw this on Lifetime Movie Network in 20013, so it was either a Lifetime original or just a made for TV movie. A woman is happily married with two children. However, her ex-husband is a college professor but also a deranged pedophile who has faked his own death. Her ex-husband comes back to stalk her two children and kidnaps them. There is a disturbing scene where the pedophile chases the son around a basement. When he catches him he says, “Like my father used to say to me, what are you going to do now buddy boy?  He almost throws the daughter from a roof but then he is caught. Does this sound familiar?