Children of the Salt - Hijos de la Sal (2017).

An elderly father and his two children, survive by harvesting salt from the sea. After the father dies, they live alone. Isolated from the outside world they become increasingly distanced, whilst their lust starts to blossom. Their lives get a lot harder. The brutal reality of harvesting sea salt coincides with their blossoming sexuality. Their lives of solitude drive them further apart whilst awakening lust makes itself known.