Considéré comme le chef-d'oeuvre de Carr, ce roman contient la plus célèbre des réflexions sur les chambres closes.
John Dickson Carr (1906–1977) was one of the most popular authors of Golden Age British-style detective novels. Born in Pennsylvania and the son of a US congressman, Carr graduated from Haverford College in 1929. Soon thereafter, he moved to England where he married an Englishwoman and began his mystery-writing career. In 1948, he returned to the US as an internationally known author. Carr received the Mystery Writers of America’s highest honor, the Grand Master Award, and was one of the few Americans ever admitted into the prestigious, but almost exclusively British, Detection Club.