Torn (2010)

What if a stranger decides to ruin your life? Daniel, a timid bookseller, has a random encounter with Steve, a successful real estate agent. In Steve, Daniel suddenly sees all that is wrong in the world, and sets out to destroy him. When Steve realizes that his unknown enemy wants him to spend the rest of his life as a frightened, hunted man, Steve decides to defend those dear to him, before they are taken from him.