The shot is impossible. In the middle of a blizzard, down a busy New York avenue, into a moving car.
The agent in charge knows only one man who can work out where the bullet came from. Lucas Page, child prodigy and physics professor, sees crime from a different angle - his ability to read a scene is uncanny.
Page quit the FBI after an accident nearly took his own life. But the victim is his former partner, and he can't resist the call to help.
But this death is only the first in a series of meticulously planned murders, carried out with a skill beyond anything Page has seen before.
To catch this seemingly unstoppable killer, Page must discover the well-hidden secret connecting the victims - before he and his family get caught in the crossfire...
