Good films always raise compelling questions, whether the format is fiction or documentary fact.

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.

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

The film never slows down or bores, plunging from one harrowing sequence to the next.