Three generations of women marked by a common past on the island of Formentera. One summer afternoon, Julieta, a seven-year-old girl, disappears on a beach between rocks on the island of Formentera without her eleven-year-old sister Greta being able to do anything. Twenty years m later, an adult Greta living in London returns to the island for the first time after the tragedy to care for her grandmother, who is ill.