Body of Lies : The crime thriller of 2026 from the award-winning and Sunday Times bestselling author of In the Blink of an Eye

The brand-new thriller featuring DCS Kat Frank and AIDE Lock, from the award-winning Sunday Times bestselling author of In the Blink of an Eye .

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?

PRAISE FOR JO CALLAGHAN:

'Terrifyingly timely and provocative' VAL McDERMID

'The most original crime novel you'll read this year' CLARE MACKINTOSH

'Just brilliant!' LISA JEWELL

'Sharp, perceptive writing and a brilliant new take on the detective duo' T. M. LOGAN

'Everything you could hope for in a thriller: heartbreaking, intelligent, deftly plotted and so original' FIONA CUMMINS

'A fresh take on the buddy-buddy cop trope . . . Provocative and compelling' VASEEM KHAN

'Wildly original, heartfelt, funny, and properly thrilling. Take a bow, Jo Callaghan' CHRIS WHITAKER

Author: Jo Callaghan

Modern & contemporary fiction (post c 1945), Crime & mystery, Thriller / suspense, Science fiction

Published on 21 May 2026 by Simon & Schuster Ltd.