I like Christian Slater, I'm a fan. And I understand he may want to try out a bad-guy role like his co-star John Travolta in Broken Arrow, but this movie makes Slater annoying. Everywhere you turn - he's there with that grating voice and midwestern accent and pushy personality.
The movie is contrived and predictable. Yes, Slater did a good job of acting because his character evoked the desired emotions as the pursuer. But the pursuee scientist Ben Keats is a genius in the lab, but is so dumb outside as to be impossible. Never thinks to call the police. His wife is equally as dumb to believe obvious contrived stories of their chance meetings.
So about 1/3 of the way into the movie I stopped caring and just watched to see if the movie really was as predicable as I thought. I am so good, unfortunately, so I wasted 1 hour. Thank you, the movie is only 95 minutes.