Ignore the trailer. Its for a completely different movie.
However, if you want to spend time sitting and watching an annoying, moaning woman in a truly frustrating, uncomfortable storyline then you will love this film.
She plays her part incredibly well. Too well. No part in this film was funny. Its frustrating, annoying and just awkward in a "why the f*** am i watching this?" kind of way.
Avoid. At all costs.