With some trepidation Nigel Derry approaches the country house of his enigmatic and unpredictable aunt Gwenny for an Easter holiday visit. After a tense few days in which her guests' interactions range from awkward dinners to a knife fight, a disgruntled aunt Gwenny departs for Europe. Receiving a telegram from Le Touquet inviting him to join Gwenny in the south of France, Nigel finds himself on a vacation cut short by murder as a cold shadow of suspicion eclipses the sunny beauty of the C├┤te d'Azur. Enter Inspector Blampignon of the S├╗ret├й Nationale, whose problems abound as the case suggests that the crime may have occurred hundreds of miles away from where the victim was discovered. Undeterred, the formidable French detective embarks on a thrilling race to discover the truth in this rare and spirited mystery novel, first published in 1956.