The most dangerous mind game Batman and the Riddler have ever played The Riddler is one of Batmans most intelligent villains, the one who leaves his clues with particular care. The Riddler is always playing a game; there are always rules. But what happens if the Riddler kills someone in broad daylightfor no apparent reason? No game. No code to crack. In this incredible thriller, Batman is pushed to the limits of his mental abilities as he tries to uncover the Riddlers true motive!