Not a bad depiction of psychopathy for a theatrical effort. The plot shifts halfway through toward the absurdity, but I could still go along with it for the film's sake. Then the last act just turned contrived for nothing better than a twist ending, I'm assuming. Sigh. What could have been pretty good turned sour with the poor choice of the final girl. Harumph. Too bad as up to this point they had a decent film going.