At first, it’s a secret experiment between two tech-obsessed boys. But when they test the hacked headset on a dog killed in a hit-and-run, they capture a blurred flash of headlights, screeching tires, and a fleeing car. With help from AI, the image sharpens into a license plate—and a real person behind the wheel.

Suddenly, Kurt and Ethan aren’t just messing with code. They’re holding evidence.

Things get darker when Kurt’s mom, Emilia, the county coroner, and Ethan’s dad, Marc, a local detective, realize the boys’ “glitch” might expose a violent attacker tied to multiple crimes. Together, the four of them walk a razor-thin line: use the boys’ invention to stop a predator… without exposing the truth about how they got the footage or putting the kids in the crosshairs.

As the body count rises, a quiet classmate named Claire—who’s been living under the radar in a hidden treehouse—starts connecting dots of her own. She’s seen the man the boys are hunting. She’s watched him slip in and out of an apartment where someone is about to get hurt.

Now three teenagers and two single parents are caught in a secret war no one else knows is happening.

If the wrong person discovers what the headset can do, they won’t just destroy the evidence.
They’ll come for the kids who made it.

Playback: A Mind’s Final Witness is a gripping YA thriller about friendship, loss, found family, and the dangerous power of a technology that can replay the last seconds of a life. Perfect for teens and adults who love fast-paced mysteries, emotional stakes, and just a touch of near-future science that feels one step away from real.

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