Adam is a stay-at-home dad who is also working on a history of the bombing and rebuilding of Coventry Cathedral. He is a good man and he is happy. But one day, he receives a call from his daughter's school to inform him that, for no apparent reason, fifteen-year-old Miriam has collapsed and stopped breathing. In that moment, he is plunged into a world of waiting, agonising, not knowing. The story of his life and the lives of his family are rewritten...