The neurologist in question is Dr. Sarah Chen, a brilliant researcher who has dedicated her life to studying the human brain and understanding what drives violent behavior. When a series of brutal murders happens, she becomes intrigued by the killer's psychological profile and decides to visit him in prison.
The killer is a man called James Allen, who is serving a life sentence for 15 gruesome murders. He is cold and aloof, showing no remorse for his crimes. As Sarah begins her study of his brain, she discovers that he has a rare condition that causes a disconnect between his cognitive processes and his emotional responses.
For Allen, violence is not an emotional response, but rather a logical one. He sees the world as a series of problems to be solved, and if violence is the most efficient solution, then he sees no reason not to use it. Sarah is horrified by what she uncovers, but at the same time fascinated by the complexity of Allen's mind.
As she delves deeper into Allen's brain, Sarah begins to question her own sanity. She finds herself becoming obsessed with the killer and drawn into his twisted way of thinking. She starts to see his logic in her own life, grappling with ethical decisions and finding herself more willing to take risks and break the rules.
15 Killings is a psychological thriller that explores the line between rational thinking and instinctual behavior. It asks whether violence is an inescapable part of the human condition or something that can be overcome with knowledge and insight. With stellar performances from its lead actors and a gripping story, the movie is sure to keep audiences on the edge of their seats from start to finish.