The thing to know is that it's a downer of a movie, lifted by a great performance by Keaton. There are two key plot lines: a noir thriller, and a story about losing yourself to dementia.
The thriller, not necessarily hard to figure out, has non traditional twists that make it interesting. The personal story is more intriguing: Knox (Keaton) knows he's "going away" and is desperately trying to put things in order before his mind completely betrays him. There were times where i was reminded of Memento, but this film delves more deeply into the primary character's past.
Keaton is excellent, Marsden does well enough playing a conflicted son who has his own personal problems to contend with. Marcia Gay Harden is
capable in a small role, and Pacino with very little screen time, pulls off his brand of sentimental bad guy.
Recommended.
