Body of Lies
Human suspicion. AI manipulation.
When truth can be rewritten, who can you trust?
DCS Kat Frank is back at the Future Policing Unit after a devastating loss - and straight into her most disturbing case yet.
On Halloween night, a local MP is found murdered. Beside the body is a taunting message in binary code, aimed directly at Kat:
Catch me if you can.
The victim was a vocal opponent of AI. The motive looks political. But as Kat investigates with her partner, AIDE Lock - the world’s first AI detective - the case spirals into something far more dangerous.
Then a cyberattack takes down the National Grid.
With the country in chaos and lives on the line, Kat and Lock must track a killer who is always one step ahead. But in a world of deepfakes, deception and digital ghosts, instinct is no longer enough.
Kat must decide whether to trust the one thing she still fears most: her AI partner.
Because this time, Lock may not just be solving the case.
He may be changing what it means to be human.
Can Kat stop a killer before the lights go out for good?
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Jo Callaghan
Jo Callaghan lives in central England and works on artificial intelligence strategies. Her debut novel, In the Blink of an Eye is the first book in the four-part Kat & Lock series. Novel won the prestigious Theakston Old Peculier Crime Novel of the Year Award in the UK in 2024, the year of its publication.
Kat & Lock
Kat & Lock consists of four books. The current recommended reading order for the series is provided below.

