A man swims in the sea. As he does so, memories come flooding back. From his early childhood to his adult life, all the memories are connected to water. Some are happy, some glorious, some traumatic. This story will be the story of his last swim. It will take us from the source to the river – from the waters of childhood paddling pools to those of swimming baths, from a North African country to the shores of the Mediterranean, from Olympic stadia to reservoirs, from concentration camps to the paradise beaches of Réunion.