Changes

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There's a bunch of rock stacks – four of them, even if their name implies only three – off the coast of Iceland. The largest is a tall and thin lump of rock, hazardous to anyone on it, and home to a crumbling and inoperable helipad and a small, squat lighthouse – not the lighthouse of your imagination, but a perky concrete cabin, not needing any more than the one room to house the gear and the lantern on top. Replacing some of that gear and surveying the site is a group of four people – specialist workers, and a photographer to capture it all. So why and how do we know their story ends in tragedy – two of them cast to the waters below, and a third seemingly stabbed before the prologue is over? And why is their narrative interspersed with that of a woman, struggling with work in the police and seemingly with a haunted garage, the scene of her husband's failed suicide, and also that of a family returning home from a house-swap trip to Florida to find something they really didn't want to have waiting?