In the Space of an Atom - Bruce M. Perrin

Jeremy Reynolds has been listless for a while now. First, his girlfriend of 4 years dumped him, and he was in a funk. Then, he quit his job as an accountant. Yes, Jeremy was doing little and caring less. But recently, he has found something that energizes him, something that gives him direction, something that gets him out of the house every morning. It's called ... running for his life.

Just as Jeremy was finishing the last in a string of low-paying, temporary market research gigs, the study assistant pulls a gun on him and tries to kill him. When Jeremy bungles his way to freedom, he realizes that the technology in this study is much more than it first appeared. It's enough to kill for. But he also knows he is in way over his head. So, when the lab and the would-be assassin disappear, and the police close the case, Jeremy is desperate for help. He finds it in the beautiful, young Diane Stapleton, MD. Now, the two of them match wits with the killer, in chases that take place where no one else has been...in the space of an atom.