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 story-telling is good with flashbacks.The film is both funny and heartbreaking. You smile in a scene and get a soulcrushing revelation in the next.

This movie feels like it was made purely to piss off people who want good shows

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.