The film starts as a fairly common murder investigation in the rural parts of Spain. Two officers are sent to a small community to investigate the disappearance of two young sisters. Soon it becomes clear that more is going on and the film develops towards a somewhat grim, Scandinavian-gloomy-ish thriller with long shots and a dark images. There are the obligatory twists and turns in the story and the changing suspects. Nothing too unexpected, but well enough.
The film is perhaps better suited for a dark autumn or winter night than a hot summer night, but “La Isla Mínima” makes an entertaining crime thriller.