Hunting Humans (2002)

Meet Aric Blue. He's young, he's handsome, he's successful. He's also a serial killer. He picks his victims at random, stalking them and taking advantage of their patterns in order to kill them. He's the ultimate serial killer. But when he finds his next victim already dead and a note on the body reading: "I'VE GOT YOUR PATTERN", Aric realizes he's being stalked by a serial killer every bit his equal. When two serial killers wage war, the rules are simple: Don't get in the way.