MovieXclusive has it. Richard Lim Jr. reviews it. Here's an excerpt:
Since there might be a gem that I’m missing, I rewatched Ploy in the wee hours of morning and they are right, the movie became more tolerable. Without the rush to find out the outcome of the plot and in-between 2am to 3am, things become more bearable and easy to swallow. However I wouldn’t be calling this a masterpiece by a master. There are far too many aspects that could be interpreted as an amateur effort and it’s really open to interpretation if you are so inclined to. Personally Ploy isn’t a movie that I would recommend to people.
I think that's a great review. And I agree with the sentiment. Ploy is exactly the kind of movie to watch between 2 or 3 or 4 in the morning. Then you, in your half-asleep state can relate to the main characters -- a jet-lagged married couple back in Thailand after a long-haul flight from the States.
Now, as far as I understand, the unedited version of Ploy has been released in Thailand (despite that a specially edited "clean" version was released in Thai cinemas) and other non-English territories. And, as far as I understand, it's possible to play that movie with a fan-prepared subtitle file. It's easy I'm told. But darn it, whenever I'm in the mood to see Ploy, and it's usually around 4 o'clock in the morning, it's more trouble than I want to deal with and I end up going to sleep instead.