Someone is going to be murdered at exactly 7:00, an unidentified caller informs the police. His voice is calm, measured, pleasant even. "I'm the murderer." It's 6:55. Five minutes later, a fatally stabbed man keels over on a city sidewalk. Grant Williams, who helped define '50s sci-fi as the luckless protagonist of The Incredible Shrinking Man, ventures into the thriller genre ...