The Guest List
by Lucy Foley.
A fun who-done-it. Set in a folly on an island off the west coast of Connemara in Ireland. Graveyards, peat, bogs, cliffs, caves and a lavish wedding with lots of crazy family and friends. Told from the different points of view of the bridesmaid-sister, the bride, the best man, the plus-one and the wedding planner. Red herrings galore.