When a witness's son is kidnapped, Chicago's gangland erupts into chaos Once a college football star, Bill Hanrahan has had a hard time of it ever since his bad knees kept him out of the pros. He became a homicide detective with the unfortunate reputation of losing witnesses and loving the bottle. Now Hanrahan is off the sauce, and working a job that should be straightforward: He's guarding a mob informant's ex-wife and teenage son while they tour colleges. Everything is fine until the last night of their trip. At three in the morning, Hanrahan hears shots from their motel room. By the time he breaks down the door, it's too late. The woman is dead, the boy has been kidnapped, and Hanrahan wants a drink more than he ever has before.   The mob issues a simple instruction to the informant: Kill yourself and your son lives. Hanrahan and his partner, Abe Lieberman, tear the city apart in search of the kid, hoping against hope that for once they will be able to keep both witnesses alive.