The Last Englishman and the Bubble

Is Kris the last man on Earth? He is an ordinary man in extraordinary circumstances. He types his story as he struggles to understand why he has been left alone. Why does he live in a shack on a lonely Norfolk beach? What happened to the love of his life Samantha? How does he survive alone in a desolate England populated by packs of wild dogs? What event caused everyone to disappear? And ultimately, will Kris die alone with no one to read his story?