I haven't read the book this is based on, but after seeing the film and getting that WTF feeling, I had to see what other people thought and yes, the book was not well received. Which is in sharp contrast with the directing and acting in the film, which was really good.
In short, this film is more of a play than a film, just a few characters, a lot of talking, a lot of emoting, strong emotions that overwhelm reason. I don't like theater plays much and this film is a perfect representation of why not: a lot of noise and a story that brings little entertainment, even if - perhaps particularly when - it's well executed.
You have three major characters, two guys and a woman. The woman is with one of the guys, but has been thoroughly in love with the other one a decade prior. And suddenly he pops back up into their lives. And they can't just say "this is awkward and I will take no part in it", so they dance this ridiculous dance that has a relatively predictable poor ending. Oh, and then there is this 15 year old idiot son of one of the guys who pretty much has no bearing on the story, but wastes a lot of screen time.
You can't fault Juliette Binoche, of course, she can act better than most when she's sleepwalking, and Vincent Lindon was great, too. The direction of this story was good, too, in the sense that such a nebulous plot was made bearable. But in the end the story felt biographical, because it made little sense narratively, and all of the characters were really annoying most of the time.
