After years of love, Romy & Laure face a major issue: boredom. Fortunately, every Saturday night, they go to the movies! That Saturday, a mysterious film will change the course of their lives and question their certainties . Is the key to happiness really on the other side of the screen?

While Koala, the quartermaster, deeply sleeps, Captain Diamand tells the young sailor Luciole about the finest memory of his youth. She was called Cinnamon.