In the context of a vibrant and culturally revolutionary Paris in 1968, a young American named Matthew arrives in the city to study. Fascinated by the liberal atmosphere and social upheaval, he encounters twin siblings, Théo and Isabelle, who lead a carefree life, obsessed with cinema and driven by a deep desire to break free from societal conventions.
The relationship among the three becomes intense and complex when Matthew is invited to live in the twins' apartment following a political discussion that reveals their differing perspectives. As they spend time together, they immerse themselves in a world of film, ideological debates, and a growing physical attraction. Isabelle, in particular, awakens a mix of desire and confusion in Matthew, while Théo exhibits jealousy but also protectiveness.
The line between friendship and passion blurs, leaving them caught in a whirlwind of emotions, sex, and the ideals of their environment. As Paris becomes engulfed in political turmoil, the trio begins to question their own identities and desires. In a game of seduction and betrayal, they will face difficult decisions that lead to unexpected consequences. The film is a sensual odyssey that explores love, freedom, and the fleeting nature of youth, all wrapped in a tribute to the cinematography that brought them together.