Let's get something clear real quick - this is NOT a comedy. Don't try to watch it as a comedy, don't try to laugh at things that are not supposed to be funny, and don't complain if you didn't laugh a lot.
Now, I like to see an actor take a chance and do something out of his/her comfort zone. I like to see an actor expand his/her range, explore other genres, flex their actual acting muscles once in a while. And, I like to see an actor want to do a script that might not score them points either in the box office or with critics, so long as they feel they can bring something to a role. (Tom Hanks is the best example of this; Michael Keaton is close behind, and even Bruce Willis falls into this category, in my humble opinion).
That said, this film is fairly good. A pretty tame dentist is drawn into a downward-spiralling vortex of sex, drugs and murder. He is clearly over his head as his world crumbles down around him, and he doesn't suddenly become an action hero at all.
This movie has some classic femme fatale elements but does not pursue that vehicle to the common extreme. However, it also captures some film noir ideas - the first-person narrative, the slippery-slope downwards, the protagonist who just can't stop himself from falling under the spell of the vamp who's bad news from the word "go"...
It's not Double Indemnity or Sunset Blvd, but hey, for what it is, it was somewhat engaging.
