It is a form of redemption story where the protagonist was never actually evil, just self-centered and unpleasant. Expect a series of scenes of our soon-to-be-hero being rude to subordinates, ditching his nerdy friend or kicking a woman out of his house in the morning. He is usually rich, good-looking, successful and/or charming, but lacking in friendship and love. Then the plot happens, our hero undergoes some trial and tribulations, eventually saves the day, and in the process discovers how much of a jerk he's been, learning a lesson in humility and kindness.