A gothic and sometimes gruesome black comedy with the emphasis on black, Federico Andahazi's The Merciful Women provides a useful sense of humour test for anyone suspecting an unwelcome strain of political correctness in a new acquaintance. The book is short and structurally elegant, using a semi-epistolatory form to recount the story of the ghastly Dr John Polidori, secretary to Byron, and his brush with a vampiress of unusual tastes. There are some nicely executed asides, including a Kafka-esque tale of a book censor which was perhaps inspired by the author's own experience: his earlier work, The Anatomist, caused great controversy in Argentina when it was publicly criticised by the sponsor of a literary prize he had won. Glints of humour and irony are frequent in the darkness, but the depictions of female sexual predation, cruelty to the deformed, and a homosexually-inclined anti-hero should be enough to bring the PC to foaming point. Thoroughly recommended.