Glasgow, 2015. Jack Mackay dares not look back on a life of failure and mediocrity. The heavy-hearted sixty-seven-year-old is still haunted by what might have been. His recollections of the terrible events that befell him and his friends some fifty years earlier, and how he did not act when it mattered most is a memory he has tried to escape his entire adult life. London, 2015. A man lies dead in a one-room flat. His killer looks on, remorseless. What started with five teenagers following a dream five decades before has been transformed over the intervening decades into a waking nightmare that might just consume them all.