"How would you feel if your own flesh-and-blood suddenly developed into a fiend who wants to murder another person you're fond of?"

Flying Blind has nothing to do with aviation. The title is used metaphorically to describe a situation in which daily, even hourly, calamity threatens through a fog of mystery. The fog enfolds the characters in the story; blinding them to their position; blotting out the truth; making every move a danger; effacing, with terrifying completeness, the familiar facts of ordinary existence. Through this fog Tommy Rostetter, free-lance journalist, gropes his way. It leads him from a smart hat-shop in Mayfair to a sleepy Sussex village, and finally, after a night race with death, to a dark lonely waste of Wiltshire downland.

Flying Blind was originally published in 1938.