On the longest day of the summer, 12 people sit cooped up with their families in a faded Scottish cabin park. The endless rain leaves them with little to do but watch the other residents.

A woman goes running up the Ben as if fleeing; a retired couple reminisce about neighbours long since moved on; a teenage boy braves the dark waters of the loch in his red kayak.

Each person is wrapped in their own cares but increasingly alert to the makeshift community around them. One particular family, a mother and daughter without the right clothes or the right manners, starts to draw the attention of the others. Tensions rise and all watch on, unaware of the tragedy that lies ahead as night finally falls.