RedDevil 4 is spine-tingling techno-thriller based on cutting edge research from surgeon and inventor Eric C. Leuthardt.Renowned neurosurgeon Dr. Hagan Maerici is on the verge of a breakthrough in artificial intelligence that could change the way we think about human consciousness. Obsessed with his job and struggling to save his marriage, Dr. Maerici is forced to put his life’s work on the line when a rash of brutal murders strikes St. Louis.