Steve Carella's sister is getting married. But the wedding soon becomes a deadly game of hide-and-seek for Steve and the boys of the 87th Precinct. Someone is out to murder the groom, and Steve has only a few hours to find the killer. But how do you find a murderer with hundreds of wedding guests to choose from? The best man has a motive – he'd collect everything the groom owns if the killer finds his mark. Or what about the man who loves the bride, and will do anything to get her back? Or the crazy ex-GI with more than wedding celebrations on his mind…