Very loosely based on a true story, Rampage follows the trial of one Charlie Reece who went on a murder spree in central California and pled insanity. Writer/director is clearly disgusted with the idea that an insanity defense can get a cold-blooded killer off, but the shortcuts and inaccuracies he takes in portraying the legal system injure his cause critically. Not a bad flick, and McArthur's Reece is quite chilling, but overall it's only so-so.