After committing a series of multiple murders, a neurologist visits an incarcerated killer, living in exile. She studies him and his brain and discovers the horror that lurks behind his violent impulses北岭有燕，羽若雪兮。朔风哀哀，比翼南飞。一折羽兮，奈之若何。朔风凛凛，终不离兮。
