True crime classic works as both a police procedural and demented psycho-drama. Some innovative film techniques - including split screen - perfectly serve the amazing story. Tony Curtis is excellent, as is the rest of the cast.
A time capsule item of a crime procedural involving the search for a notorious serial killer the shows its influence on other TV shows and movies to come. http://eddieonfilm.blogspot.com/2009/10/60s-film-search-for-serial-killer.html