Dan Merrick: You know what I like best about amnesia?
Judith Merrick: What?
Dan Merrick: After seven years of marriage, I get to fall in love with you all over again.
Sample dialogue from "Shattered", among Wolfgang Petersen's first forays into American films. In the commentary for "In The Line of Fire" Petersen says that it was this film that got Clint Eastwood to want to be directed by him, and watching its clear why he was impressed.
The plot is extra convoluted, but great cinematography and overall suspense make this work. If you are the kind of person who doesn't like gigantic plot holes and general incomprehensibility, this this might not be right for you. I think fans of Brian De Palma at his most ridiculous (Body Double, Raising Cain), will find quite a bit to enjoy here. Also has one of the best scores I've heard from Alan Silvestri.