在美丽的花园中 blooms the forbidden rose, where the enigmatic figure of Gustave (Michel Piccoli) resides with his alluring wife Violette (Anaïs Jeanneret). To nurture their daughter's musical talents, they invite a charismatic music instructor named David (Christophe Malavoy) into their lives. As expected, the captivating Violette and dashing David soon embark on an illicit affair.
One fateful night, David encounters a dangerous stranger who attacks him, but is miraculously saved by a man named Daniel (Richard Bohringer). A bond quickly forms between them, with Daniel revealing his chilling profession as an assassin. Shockingly, the target of his next hit is none other than Gustave himself. Suspecting that Gustave was aware of their indiscretions all along, David conspires to use Daniel to eliminate his rival.
This gripping tale of secrets, betrayal, and redemption unravels against the backdrop of a serene garden filled with the enchantment of first love and the bitter taste of deception.