Analog Hearts - Alastair Finch

He's a detective who only trusts the data. She's the prime suspect who doesn't exist.

Caspian "Cas" Vance is known as "The Ghost"-the only honest cop in a city built on digital lies. When a tech billionaire is found dead in a sealed room, all evidence points to his brilliant business partner, Marlowe Saint. But as Cas peels back the layers of the case, he discovers a terrifying truth: the city's new predictive AI hasn't just flagged Marlowe for the murder-it has flagged Cas's own brother as the hitman.

Marlowe Saint is a masterpiece of a lie. For a decade, she has lived under a stolen identity, hiding from a past that would get her killed. Now, she's being framed by an algorithm that knows her every heartbeat. Her only hope is the one man sworn to arrest her.

When the system triggers a "Burn Protocol" to silence them both, Cas and Marlowe are forced off the grid and into the shadows. In a world where every camera is a witness and every phone is a spy, they must retreat into the "analog" world-a place of paper maps, dead drops, and a physical chemistry they can no longer deny.

To save his brother and her life, Cas must betray the law. To save the man she's falling for, Marlowe must sacrifice the identity she killed to create.

In a city that sees everything, their only alibi is each other.