Not a good one, not very entertaining either.
The rhythm is so slow!
The acting is bad, or at least, the actors are. The one actress is pretty good. But she's not saving anything. Mind you, the script is absolutely terrible. I don't think they could have done anything about it.
It had potential, though. The plot subject is not bad. But it's conducted so horrendously! The motives of the characters are undefined from the beginning to the end. Worse: they literally disappear at times, for sequences of 5, 10 minutes! You just can't figure what, exactly, is happening anymore.
It is incoherent, often absurd, as in "it doesn't making any sense what so ever" until they catch it up for a few more minutes, until the next anecdotal hole. It's a bit as if a 30 minutes plot had been extended with empty lines to fill 90 minutes.
Strangely, the soundtrack is not bad at all. It would have supported a good, mysterious, atmospheric plot line. But in these circumstances, it's a relatively pleasant oddity in the middle of boredom.
I wouldn't call it a total loss. But there are far better flicks out there. Almost anywhere...