A wine tasting party turns deadly, as shady business at a vineyard brings together wine connoisseurs and unsavory characters. George Congreve has invited his friend Merton to the Chateau Roet in France, but plans for a wine feast are soon spoiled when another guest is found murdered. Trepidation towards the French principle, "guilty until proven innocent," leads to Congreve taking on the role of detective in an effort to find the guilty party before calling in the gendarmes. Congreve believes that the right wine stimulates the right frame of mind, and uses his extensive knowledge to pair wine and witness moving forward in the case. This is a well-written mystery that will interest enthusiasts of Golden-Age Detective fiction, with plenty of clues scattered among the empty wine bottles.