Sergeant Cribb and Constable Thackeray prove themselves among Scotland Yard's finest as they pursue the trail of a mysterious and vicious criminal through the riotous music halls of nineteenth-century London. Performers have been falling victim to a series of bizarre and humiliating practical jokes perpetrated during performances. But no one is laughing the night a young woman is murdered during her disappearing act at the Paragon Music Hall. Cribb...