Started out gripping with a lot of promise... ended up becoming overworked and annoying, and completely flat in the end. Things that didn't make sense were too numerous to list
If suspension of disbelief is your thing, along with a lot of gratuitous scenes on a lot of levels (sexual fantasy, torture, exploitation... something for everyone)... and you can live with loose or completely untied ends, that seem to be sloppy more than deliberate, then I highly recommend this movie
The rest might find that the back half is as awful as the first half is good