Many thanks to NetGalley and Random House for gifting me a digital ARC of the debut book by Jo Callaghan, and the first in the Kat and Lock series. All opinions expressed in this review are my own – 4.5 stars rounded up!
Kat Frank is a single mom after her husband died from cancer. She’s also a cop and has just been tasked to lead a pilot program to test whether AI can be used for police work. Enter Lock, a hologram activated by a device on Kat’s wrist. Who will win out – Kat’s gut reactions and experience or Lock’s statistical calculations and analysis?
This was a fascinating book, combining an intriguing police procedural with artificial intelligence. As Kat’s team starts looking into two missing person cases that suddenly become personal, can they work together to solve the mystery in time? This book has wonderful characters. You could feel Kat’s pain of first losing her husband and then losing her son in a different way as he grew up. Lock felt like a real character as well, infusing humor and naivete into the narrative. Plus, the cases were disturbing and I had no clue how they were going to be resolved. I can’t wait to read more from this pair!
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