THis film sneaks up on you - there is something unsettling and powerful about it. The lead performance is raw, real and sad. This guy is a low street thief who has a circle of whores and other lowlifes around him. It doesn't matter if you know a bit about the horrible regime of General Pinochet who was in power when the film is set - 1978 but the movie is a metaphor for this brutal dictator's control of the country - insane behavior creating insane results. The lead guy is obsessed with Travolta's film Saturday Night Fever - he watches it in a movie theatre endlessly - memorizing the dialogue and all of Travolta's moves and dance steps. A Chile TV Variety show has celebrity look-a-like contests and he was to enter and win the Tony Manero contest - white suit and all. This movie feels like a documentary - and there are moments of calm followed by shocking displays of violence. I can see that this film might not be for everyone but I found it to be incredibly powerful. I disagree with the summary on this page though that describes the guy as a "serial killer" - he is not a serial killer - he just makes sure to get anyone out the way who stands between him and his obsession.