Samuel is an old hippie musician who settled in Formentera in the 1970s, when King Crimson and other British rock bands frequented the island. There he lives austerely, in a ramshackle house without electric light or unnecessary luxuries, and plays the banjo in a friends' club. Until one day, after many years, he receives the unexpected visit of his daughter Anna and his grandson Marc. Anna, unemployed for some time, says she has had to accept a job in France and is forced to leave her little son on the island with grandfather Samuel.

Four days in the lives of an exorcist (Eloy Palma) and his granddaughter (Alba), working in the Barcelona area.