A janitor, a former junkie, a cab driver, a waitress, a high school senior. Strangers in life, they each receive a blue card in the mail. Now they are connected in death by blue cards found on their bodies. The enigmatic letters on the cards mean something to the killer, something Homicide Detective Jayson Weis has to decipher before he can rid the city of this madman. Confronted with the bodies of the present, haunted by the bodies of the past, Weis knows there will be more bodies in his future unless he can stop the Card Killer. When the few witnesses can't agree about the killer, not even the race and sex, Weis begins to dread the possibility of a second killer. His relationship with long time girlfriend Lois Fremont is deteriorating. The pressure from City Hall mounts. His own uncertainty about his future dulls the edge of his investigation. Help comes from an unexpected direction, a paraplegic teenager who has received one of the cards.