While it doesn't offer any answers, it both thrills and makes you think.

The film's masterful storytelling did its job. The message was clear. No need to overdo.

Story: It's very simple but honestly that is fine.

It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.