Post-Disaster Drama Set In Scotland

It's set in a couple of holiday cottages in rural Scotland, just outside a small village. There's two young couples staying in one cottage and a lone middle-aged guy in the other.

There's been some sort of major event - we're never told what it was - which has disrupted everything and stranded the holidaymakers in the remote cottages.

SPOILER ALERT.

As the plot progresses, things break down rapidly. The couples get off with each others' partners, leading to tension; the local police come and commandeer their supplies; they try to steal supplies from the neighbour and one of them gets shot; they eventually eat the neighbour.

Anyone know what it's called?

Strathblair?

Thanks Sookie, but it wasn't Strathblair - it was more contemporary than that and it was a movie rather than a series.

Not Scottish, but just to eliminate a vague possibility...

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The Barge People

Worth a try, but not this movie. Much more low-budget than this one.

Not The Barge People, either, unfortunately. No barges or monsters involved, just ordinary folk trapped in a situation which gradually brings out the worst in them.

Carriers 2009 fits some of your list. It has Chris Pine, but it's before his Star Trek debut.

Pro: Two brothers and their female friends try to get to a childhood cottage; one does get shot; survivalists(not police) take their things

Con: Not Scotland; no cannibalism

https://en.wikipedia.org/wiki/Carriers_(film)

Are the people in the movie Scottish, or just on vacation there?

Is this a movie from the last 10-20 years?

what genre and what year is the movie