Elevator to the Gallows

Elevator to the Gallows (1958)
[http://www.imdb.com/title/tt0051378/]

The Gist:
Interesting concept piece of French New Wave, man has affair with someone's wife and kills husband in order to run off with her only to get trapped in an elevator as he's making his getaway. Then you have all the happenstance that you often see in this kind of cinema, leading to the man getting framed for an entirely different murder. Unfortunately the whole film is somewhat ruined by a lousy subplot with shallow characters, in particular the petulant kid who murders two tourists and his irrationally lovestruck girlfriend. Their characters were terribly annoying, lacked motivation or depth, and almost took up more time than the main plot so it was a big strike against the film.