Yes Son tells the story of how Madeleine's life is shattered when she is jilted by her rich sailor fianc, Jake, after he finds out that she is pregnant. Because of this, she desires rich luxuries and plans to rob a bank in Queensland and to help out her poor sister, Matilda. Needing an alibi, she has a birthday lunch with her alcoholic mother, Annabelle. But her plans are scuppered when she is wanted for the murder of a motorcyclist. His brother, Hamish, a Portuguese drug lord and ruthless vigilante, vows to kill Madeleine in revenge. And so, she hides from him and the Australian Federal Police with her family including her childish brother, Henry, inside a haunted church in a sleepy village of Bibury in the Cotswolds. Years of mental bullying from her father, Maxwell, and her involvement in witchcraft leads her to kill him. Little does she know that he's an alien on borrowed time from a far-away planet and he has adopted his family in order to study them. Is she guilty and can she escape the Australian Federal Police?