This novel is about a female lead that traveled back in time, and because of her last life where both her parents, twin brothers and everyone around her always sided with a girl her mother brought back, she was cast aside, humiliated and hated without doing anything wrong because of the other girl, so when she went back in time her personality became twisted, she became a psychopath serial killer. She of course also meets a handsome psychologist that helps catch criminal psychopaths, and they will get together.