The acting was very good, the storyline was interesting, but the overbearing musical score which just never stopped completely ruined the film for me. It was like hearing constant water dropping from a kitchen sink that was leaking, or someone banging on a pipe constantly throughout the film you were trying to watch. I guess the director Carl Bessai may have been attempting to remind his audience that the haunting musical score was to remind the serial killer and the daughter of one of the victims who is trying to find her missing mother, that the dead women live on and will forever haunt the serial killer and unfortunately the audience as well.
The storyline is loosely based on 10 aboriginal women who were alcoholics and met with an untimely death deemed by the county coroner as "Unnatural & Accidental" thus the movie title. Actor Callum Keith Rennie plays Norman, an alcoholic mechanic who likes to have sex with drunk native Indian women and then after they are out cold from drinking or knocked unconscious by Norman's punching and strangling them he continues to pour booze down their throat to make their deaths appear to be from alcohol poisoning.
I enjoy a good serial killer film and as for the characters in this film the acting was above par as was the storyline. Unfortunately the director Carl Bessai should have paid attention to his early film preview critics who unless they were completely deaf would have advised him that he needed to tone down the musical score because it completely takes over any redeeming qualities of the film and irritates his audience to no end thus distracting from an otherwise enjoyable dramatic performance by the two lead actors Callum Keith Rennie who plays serial killer Norman, and Carmen Moore who plays Rebecca who is searching for her missing mother, a native Indian.
If you can somehow ignore the most irritating (supposedly haunting) musical score which is constantly in the background audio throughout the entire film then maybe, just maybe, you will like the film. As for me I just could not help it but I just kept getting more and more irritated waiting for the musical score to either just subside or preferably stop even for just a short while but to no avail, it kept ringing throughout the film. I give the film 2 stars for some very good acting and a low overall rating of 3 out of 10 due to the badly done music score that was way overbearing.