Everyone else goes to Arrowood.The Afghan War is over and a deal with the Irish appears to have brought an end to sectarian violence, but Britain's position in the world is uncertain and the gap between rich and poor is widening. London is a place where the wealthy party while the underclass are tempted into lives of crime, drugs and prostitution. A serial killer stalks the streets. Politicians are embroiled in financial and sexual scandals. The year is 1895.The police don't have the resources to deal with everything that goes on in the capital. The rich turn to a celebrated private detective when they need help: Sherlock Holmes. But in densely populated south London, where the crimes are sleazier and Holmes rarely visits, people turn to Arrowood, a private investigator who despises Holmes, his wealthy clientele and his showy forensic approach to crime. Arrowood understands people, not clues.

     She is terrified – but begs Poirot not to find and punish her killer. Once she is dead, she insists, justice will have been done.Later that night, Poirot learns that three guests at a fashionable London Hotel have been murdered, and a cufflink has been placed in each one’s mouth. Could there be a connection with the frightened woman? While Poirot struggles to put together the bizarre pieces of the puzzle, the murderer prepares another hotel bedroom for a fourth victim...