Cambridge, 1933. On All Hallows’ Eve, in a candlelit pew in historic All Hallows Church, healthcare professional Adelaide Hartest witnesses a stranger’s loss of life moments. Adelaide is simply in time to listen to his ultimate confession: that he has plunged the dagger into his personal chest, and that his dying can be a suicide, regardless of its suspicious appearance.
But his confession isn’t sufficient to halt an research. The sufferer, it's printed, is understood to Scotland backyard, and his loss of life is an issue of nationwide predicament. Assistant Commissioner Joe Sandilands is shipped up from London to find the reality. Thrown right into a lethal ring of cloak-and-dagger intrigue and excessive society hedonism, Sandilands chases a phantom killer via Cambridge’s aristocracy, intelligentsia, state-of-the-art researchers, and a clandestine ring of girl spies. What mystery used to be the lifeless guy hiding, and what's at stake?