My impressions

This is a thriller which I think Hitchcock would have been proud of.

With a patience worthy of the great master, Moll let's the story
creep forward with sinister restraint. Thanks to a carefully
controlled performance from Sergi Lopez - the creepy ex-school
acquaintance of Michel, who worms his way back into his "friend's"
life - the film's gradual ratcheting up of tension works very well.
This film is a triumph of pacing. It's a storyline that's done
before in film, but rarely this well.

Recommended.

Film info: http://uk.imdb.com/Details?0216800