In the wake of "Fatal Attraction" and "Basic Instinct" came a bunch of bad to average movies that followed the same basic formula. This is one of those such films. On the surface, this film should have been better. Lysette Anthony, Harry Hamlin, and Michael Ironsides are all great actors, but it's obvious that they weren't giving 100% in this one, and the writing and dialogue didn't give them much to work with. A viewer will easily figure out what's going on long before the main character does.
I've had a crush on Lysette Anthony since seeing her in "Krull" as a child, so, as other reviewers have said, the only redeeming feature of this movie for many people will be seeing her nude for much of it.
Incidentally, if you want to see a better but similar film, try "Dream Lover".