• The Lady From Zagreb
  • Prayer
  • A Man Without Breath
  • Prague Fatale
  • Field Gray
  • If The Dead Rise Not
  • A Quiet Flame
  • The One From The Other
  • Berlin Noir
  • Hitlers Peace
  • A Philosophical Investigation
A Philosophical Investigation

LONDON, 2013. Serial killings have reached epidemic proportions—even with the widespread government use of DNA detection, brain-imaging, and the "punitive coma." The best detectives have proven themselves to be women, and there is none better than Isadora “Jake” Jacowicz. Beautiful, brilliant, and driven by demons of her own, she must stop a murderer, code-named “Wittgenstein,” who has taken it upon himself to eliminate any man who has tested positive for a tendency toward violent behavior—even if his victim has never committed a crime.

A cult classic and a terrifyingly prescient dystopian nightmare, A Philosophical Investigation is a riveting cat-and-mouse game between an iron-willed detective and a killer whose intellectual brilliance is matcher only by his homicidal madness.

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Clever, tightly plotted, well written and full of good jokes…the sort of crime writing in which ideas really dazzle and move the reader.
The Times Literary Supplement (London)
Philip Kerr’s ingenuity in unquestionable….This is probably the crime story of the year for computer buffs, amateur philosophers, and would-be time travelers.
London Review of Books
Best described as a suspense writer’s suspense novel—an impressive tour de force that is likely to be regarded as a classic among the cognoscenti.
The Wichita Eagle
Set in an early twenty-first-century London of Orwellian squalor, this is a crime novel with a twist….An unusual and intellectually stimulating thriller.
Library Journal
Terrific…A nifty novel, to describe, and dream about.
John Leonard, National Public Radio
The brainiest thriller to come along in years…raising questions about knowledge, proof, and reality in unnervingly dramatic contexts.
Kirkus Reviews
One of the more imaginative thrillers in quite a while….Combines teleological speculations with nitty-gritty futuristic police work.
The Wall Street Journal
A stunning novel…convincing…frightening…Philip Kerr puts and end to the myth that all the best crime fiction is written by women.
Ruth Rendell, author of Not in the Flesh
A truly intellectual thriller that makes the brain cells as well as the hair on the back of the neck tingle.
Chilling…absorbing…part techno-thriller, part futuristic detective story, part diary of a serial killer.
The New York Times Book Review