Matthew (Josh Hartnett) is a young Chicago businessman with a pretty girlfriend (Jessica Pare) and everything looks great for the future. All of a sudden, Matthew thinks he sees an old girlfriend Lisa (Diane Kruger) who dumped him two years ago. He searches for her obsessively and starts to lose it.
The film then begins to skip back and forth between the present day mystery and scenes from his past relationship with the girl he loved. These kind of flashbacks require the viewer to play close attention and I usually prefer a film that stays in a logical sequence. But Josh is a captivating kind of guy and holds your attention. How will this love triangle sort out? Guess you will have to catch the movie to find out.