Brutally savage... and weird.

Yeah I agree, the first half hour is really a grind to get through. Way to existential for me - when I turn on a horror movie I don't really do that to watch two immature adults whining at each other about not wanting to break up.

That said, after that half hour it picks up and I couldn't stop watching, which is rare for me, so they did something right.

I think this deserves a lot more attention than it's getting.

Is it similar to The Gift? The plot sounds very similar.

I agree. The sex part had me dying laughing.

I quite liked it, beginning to end and yes, it was brutally savage and weird!