When the World's Greatest Hit Man (real assassin of Kennedy, King and others) is diagnosed with cancer, a mysterious stranger makes him an offer he can't refuse; his cancer will be cured if he agrees to the Ultimate Contract--assassinate the Supreme Being. He's aided on his quest by a beautiful witch and a 14-year-old telepathic prostitute. Koman ingeniously explores human perception of God, religion and death as his hero tries to determine _how_ to fulfill his contract, and discovers that little of what we believe is what it seems