While renovating the facade of a building in Beirut, Toni, a Lebanese Christian, and Yasser, a Palestinian refugee, clash over a silly plumbing issue. A shouting argument ensues and Yasser ends up insulting Toni. Hurt in his dignity, Toni decides to file a complaint. They are rapidly stuck in an infernal spiral. A long and highly publicised trial opens where Palestinians and Lebanese Christians settle their score.