Ok, this was bad
I get the concept of Doppelgangers, from 1997's Pafekuto Buru (Perfect Blue), and it's sort of inspired American Adaptation Black Swan.
I get the concept of dead sisters like The Tale Of Two Sisters, Uninvited, The Unborn.
It's not like these concepts were badly executed is that the movie is painfully draggy, like every scene seems to last 2 hrs longer than it actually does. A bit of a more character developing, a more emotionally deep relationship of Faye and her boyfriend, a deeper rivalry with her competitor... even a flying dog for ****'s sakes... ANYTHING to turn this slow-slow paced movie into something not boring as in "what the hell was I thinking watching this?" boring.
A great cast, great performances (with the little they were given), great photography, and a mediocre underdeveloped ghost story that wouldn't frighten or even surpirse a kitten.
Avoid at all cost.