Gillingham, UK, 2018. Mike, a music producer in free fall, Dan, a sound engineer who is tired of his job, Murphy, the autistic brother with his headphones fixed to his ears, and, Lilli, the mother, are going through a rough time in their lives. Mazzy, the youngest sibling, a singer with a superb voice, has disappeared. What do they have left of her? Hours of recording : her magnificent voice was recorded onto countless tapes, which are carefully stored and filed in the family studio.