Detective Tanya Holt spent her career believing in the badge - until the system she served turned into the monster she'd sworn to fight.

When a young Black activist is found murdered in South Baltimore, Tanya's investigation pulls her deep into a labyrinth of police corruption, missing evidence, and a secret AI policing program known only as Project Athena. As the line between justice and complicity blurs, she's forced to confront not only the ghosts in her department - but the one inside herself.

What begins as a homicide case becomes a war for the soul of the city. With her partner dead, her name disgraced, and the world watching, Tanya must decide how far she's willing to go to expose the truth - even if it means tearing down the very institution that made her.

Raw, relentless, and painfully human, The Thin Blue Line is a modern crime thriller about conscience, control, and what it really costs to stand on the right side of justice.