A serial killer is on the loose in metro Detroit. Three female victims have been discovered in motel rooms in different suburban cities surrounding Motown. The only connection is that each body is found in Room 319, and the killer leaves the taunting message "Why 319?" on the bathroom mirror, written with the victim's lipstick. Detective Jefferson Chene heads up an elite squad of detectives assigned to the case. With no home life, he devotes every waking moment to catching killers. But this one is more elusive than most. With no clues and no apparent link between the victims, Chene is at a dead end. But a startling revelation busts the case wide open. He's closing in on the murderer, but will it be before another young woman loses her life?