As a child, Luke's mother often tells him the story of the Dumb House, an experiment on newborn babies raised in silence, designed to test the innateness of language. As Luke grows up, his interest in language and the delicate balance of life and death leads to amateur dissections of small animals As a child, Luke’s mother often tells him the story of the Dumb House, an experiment on newborn babies raised in silence, designed to test the innateness of language.