Shiva Mukti is a hardworking and conscientious psychiatrist, who, in the inauspicious surroundings of St Mungo's - a central London hospital of more than average decrepitude - does his level best to staunch the flow of mental illness. But Mukti is not a happy man; beset by thwarted ambition and sexual frustration, he now finds himself in thrall to the more successful and urbane Dr Zack Busner, consultant psychiatrist...
In the year 1780, Harriet Westerman, the willful mistress of a country manor in Sussex, finds a dead man on her grounds with a ring bearing the crest of Thornleigh Hall in his pocket. Not one to be bound by convention or to shy away from adventure, she recruits a reclusive local anatomist named Gabriel Crowther to help her find the murderer, and historical suspense's newest investigative duo is born.