Down on Your Knees — Lee Thomas

Denny ''The Bull'' Doyle steps out of prison only to find a low-level gangster is attempting to take over his organization. Brendan Newton is a newbie to the gang, who's spent too much time in front of the television, building a grand fantasy about the machinations of the underworld. He's naive and weak, but he may be the only chance Doyle has. The Bull's associates are being murdered in violent and bizarre ways, and the next target is his beloved, though wholly sociopathic, brother, Jordie. Behind it all is Malcolm Lynch, a sadistic gangster who has more than guns and knives at his disposal. He's a sorcerer intent on building an empire, and Doyle is the only thing standing in his way.