When one lavish wedding ends in disaster before it can even begin - with the maid of honour discovered dead in Nantucket Harbor just hours before the ceremony - everyone in the wedding party is suddenly a suspect.

As Chief of Police Ed Kapenash digs into the best man, the bride, the groom's famous mystery novelist mother, and even a member of his own family, the chief discovers that every wedding is a minefield - and that no couple is perfect.