Ted Bundy, Jeffrey Dahmer, David Berkowitz. Three of America's truly gruesome figures of criminal infamy who killed and killed again. In the annals of crime, serial killers are relatively rare. But out on a bleak, windswept stretch of New York's Long Island seashore police investigating a cluster of ten murders are grappling with the chilling prospect that more than one serial killer is responsible. They're not going to solve this in a nice, neat commercial half-hour.