Tonight nineteen-year-old William Lavery is dressed for success, his first black-tie do. It's the Midlands Chapter of the Institute of Embalmers Ladies' Night Dinner Dance, and William is taking Gloria in her sequined evening gown. He can barely believe his luck. But as the guests sip their drinks and smoke their post-dinner cigarettes a telegram delivers news of a tragedy. An event so terrible it will shake the nation. It is October 1966 and a landslide has buried an entire school: Aberfan. William decides he must act, so he volunteers to attend. It will be a choice that threatens his own happiness and forces him to think about the little boy he was and the losses he has worked so hard to bury.