Laws of Deception.

A law student is seduced by a beautiful woman he doesn't know, and after a one night stand with her, his roommate warns him to be careful because he suspects she may have other motives. Years later, she returns and hires him as her lawyer to defend against a charge of murdering her husband. A web of intrigue ensues as the lawyer begins his hunt to find the killer and also confront the demons of his past.