Every collision costs Mara Ellis exactly ten minutes — and she never remembers a single one.
After a rear-end crash leaves her with a gap in her memory and an insurance report she doesn't recall filing, Mara discovers the truth in a Elias Voss, a missing researcher who walks backward through frozen traffic, a man living time in reverse. Wherever they collide, the world stops for exactly ten minutes. She lives them and forgets. He remembers them — and loses a piece of himself each time.
The trail leads back twelve years, to a laboratory studying temporal perception, a room full of clocks all stopped at 3:17, a childhood car crash that killed her father — and a question no one will what happens when the ten minutes end?
Dr. Adrian Vale claims he can fix it. Mara's mother knows more than she's telling. And the only way out of the interval may be to stop trying to change the past — before the past changes Mara.