Shute wrote this in 1942, and the story plays around spring 1940. It is very much a story of its time, and about those dark days when everything was going wrong for the French, and for the English. This was true for their countries; but also very much for individuals like 70-year old Mr Howard, on a fishing holiday in the Jura to forget a personal bereavement. I don't want to give the storyline away, but it starts small, and keeps growing; both the problems, and the solutions. It is very much a Shute book about the lone individual dealing with immense problems, and discovering unsuspecting humanity in many people. It is a sad and warm book at the same time.
For me this is not yet Shute at his peak - I think he reached that a bit later. Hence the four stars. But they are four stars only compared to some of his later books - this slightly old-fashioned story is still head and shoulders above most other novels!