As always there's some class A acting from the cast. The movie however did take a turn after the mysterious guy with the glasses showed up. The story in itself is weak due to the unexpectedly bad ending.
The ending was a major disappointment in that it leaves the viewers with a sense of pointlessness. It's very much akin to robbery/heist movies that end up with the protagonists (who are usually wear honor like Robin Hood,) giving everything back after some elaborate and magnificently executed plan just to teach the audience in some didactic manner, that 'crime doesn't pay.'
Bottom line is, the story was quite a major flaw. The casts talents could have been put to better use elsewhere.