The gentleman tied to the lamppost on Westminster Bridge is most elegantly attiredâ€”fresh boutonniere, silk hat, white evening scarfâ€”and he is quite, quite dead, as a result of his thoroughly cut throat. Why should anyone kill Sir Lockwood Hamilton, the kindest of family men and most conscientious member of Parliament? Before Inspector Thomas Pitt can even speculate on the reasons, a colleague of Sir Lockwoodâ€™s meets the same fate in the same spot. Public indignation is boundless, and clever Charlotte Pitt, Thomasâ€™s wellborn wife, canâ€™t resist helping her hard-pressed husband, scouting societyâ€™s drawing rooms for clues to these appalling crimes. Meanwhile, the Westminster Bridge Cutthroat stalks another victim.