It has all the elements of a horror movie: an unsuspecting Christian couple adopts an adorable little girl only to discover she is an adult sociopath masquerading as a child.
If the premise sounds familiar that's because it’s virtually the exact plot of 2009 big screen chiller 'Orphan', where a pig-tailed 'youngster' tries to murder her family when it's revealed she is 33.
There are a number of situations that seem too ridiculous or just too unlikely to ever happen anywhere outside a cartoon. You know, stuff like watching someone make an escape through a tunnel they just graffitied on the side of a building, or a shotgun blast that grazes its target but doesn't do anything other than sharply part his hair, or hearing an actual human say the word "varmint" out loud.