The Good Within by Lorrimer Kemp - Short - Written with the intention to be filmed. This is a psychological thriller which deals with complexity of the mind. Liam Clark awakens early one morning to find himself faced with an alternative, cold and calculating version of himself in the bathroom mirror. To make matters worse, he finds three dead bodies in the house that is not even his.   9 ages - pdf, format 8)

Nothing too new about this one.  Similar to when Priscilla Rich became the Cheetah, Wonder Woman's most famous foe.  She also had multiple personality disorder.