Monkey Productions

In her fifties, jobless and lonely, Rosa has lost her self-esteem. Her life takes a new turn when she decides to give a ball to her young neighbour, who keeps losing his. To thank her, his parents invite her over unexpectedly and proudly announce that their child has just appeared in a TV advert.

As she struggles to cope with the loss of her older sister, Essie finds herself alone with her father. In the lake that borders the family home, she discovers a mysterious mermaid, which feeds only on gasoline.