When his life falls apart after a horrific tragedy, a composer returns to his native France, where he creates an AI machine with his dead wife' s voice ... with unexpected, devastating consequences... London, late 1990s. Stan, a young and promising French composer, is invited to arrange the music for a theatrical adaptation of The Picture of Dorian Gray. The play will never be staged, but Stan meets Liv, the love of his life, and their harmonious duo soon becomes a trio with the birth of their beloved daughter, Lisa. Stan' s world is filled with vibrant colour and melodic music, and under his wife and daughter' s gaze, his piano comes to life. Paris, today. After Liv' s accident, Stan returns to France surrounded by darkness, no longer able to compose, and living in the Burrow, a home left to him by an aunt. He shares his life with Babette, a lifeguard and mother of a boy of Lisa' s age, and Laï vely, an AI machine of his own invention endowed with Liv' s voice, which he spent entire nights building after her death... But Stan remains haunted by his past. As the silence gradually gives way to noises, sometimes even a burst of laughter, and Laï vely seems to take on a life of its own, memories and reality fade and blur ... and Stan' s new family implodes...