This is book number 1 in the Lord Peter Wimsey Mysteries (Audio) series.
There's a corpse in the bathtub, wearing nothing but a pair of pince-nez spectacles. Enter Lord Peter Wimsey, the original gentleman sleuth. Urged to investigate by his mother, the Dowager Duchess of Denver, Lord Peter quickly ascertains that the sudden disappearance of a well-known financier is in some way connected to the body in the bathroom. But discovering exactly which way they're related leads the amateur detective on a merry chase.
Written by a master of the detective story, this atmospheric tale abounds in the cozy delights of an English murder mystery. Dorothy L. Sayers ranks with Agatha Christie as a defining author of the genre. A novelist, essayist, and medieval scholar, Sayers was among the first women to receive an Oxford degree, and her translations of Dante remain in wide circulation. This novel marks the debut of her most popular creation, Lord Peter Wimsey, whose continuing adventures unfold amid the lively world of upper-crust British society in the 1920s.