Frederic Bourdin is, shall we say, a real jackass, and this movie gives him a chance to talk—happily—about an atrocity he committed. Bourdin, a Frenchman in his 20s, pretended to be another person, a teenage boy who had gone missing for three years, and he managed to dupe authorities and the boy’s family. Director Bart Layton uses archival footage, new interviews with Bourdin and re-enactments to tell the story. While it’s sickening that this idiot gets to gloat about his misdeeds, the story is quite absorbing, making the film worth a look. There are twists and turns that make the story increasingly bizarre, and it’s hard to look away. Still, Bourdin is a sickening sort, and the look of joy in his eyes while he brags about his stupid stunt is nauseating.