Inhalt: Cherringham parish council has invited Laurent Bourdain, mayor of a French village on the Brittany coast, to a gala reception to join the two villages in a mutually beneficial 'twinning'. The venue: Lady Repton's manor house, which her Grandson hopes to turn into a world-class conference center. An elaborate dinner worthy of the French dignitary has been prepared. But as the night wears on, and the wine flows, the mayor will vanish from the celebration, only to be found floating dead in the nearby lake. An accident it would appear, until Jack and Sarah start to piece together what really happened to the body in the lake.