Review of Self/less

I've got to know Tarsem Singh because "The Fall", which i think it's been his only masterpiece which makes Self/Less looking like quite a disaster.
The plot could anyway make this film an at least decent one, maybe nothing new but decent and I love Sci-fi usually.
Instead there is nothing that works in it, characters are not beleivable and it is predictable and trivial.
I guess I maybe expected too much.