On the French Polynesian island of Tahiti, the High Commissioner of the Republic and French government official De Roller (Benoît Magimel) is a calculating man with flawless manners. His somewhat broad perception of his role brings him to navigate the high-end ‘establishment’ as well as shady venues where he mingles with the locals. Especially since a persistent rumour has been going around: the sighting of a submarine whose ghostly presence could herald the return of French nuclear testing.