Helping to investigate a series of killings, Detective Inspector Anna Travis accepts an offer of assistance from Cameron Welsh, a convicted murderer she helped arrest in the past, but Welsh's obsession with Anna brings terrible consequences.

Stumbling onto a murder scene that a reporter likens to the crimes of Jack the Ripper, young detective constable Lacey Flint races against time to prevent additional deaths and realizes that the killer is taunting her with secrets from her past.

Just as her boss is trying to block her promotion, Anna Travis gets a case that could make or break her career-- the murder of a British film star, who lived a sad and sordid life of sexual and chemical excess and was about to write a memoir revealing every dirty detail.

Investigating evidence of a violent struggle at the home of Ministry of Defense member Dudley Kynaston, Pitt and the Special Branch discover the brutally murdered body of a young woman before realizing that Kynaston is not who he appears to be.

Detective Kathleen Doyle has her hands full. She has recently been paired with the newly promoted Detective Sergeant Williams to investigate a turf war--a series of retribution murders between the Russians and the Irish, both of whom are trying to control a lucrative underworld business. Kathleen also just learned that she's pregnant and must now deal with the repercussions of her hasty marriage in the form of Chief Inspector Acton's mother, the displeased...

As commander of the powerful Special Branch, Thomas Pitt has the job of keeping Britain safe from spies and traitors. So there's no obvious reason why he is suddenly ordered to investigate two minor incidents: the blood, hair, and shards of glass discovered outside the home of naval weapons expert Dudley Kynaston, and the simultaneous disappearance of the Kynaston's maid.