I just finished the book "A Landing on the Sun" by Michael Frayn, and like all of the other books I read by him (Headlong and Spies), I really loved it. This is the plot, in my own words.
"When a conservative civil servant mysteriously falls to his death, rumors abound that this is somehow connected to a top secret defense project. The author, a civil servant himself, is called in to investigate the events leading up to this tragic event. What he slowly and professionally unveils is a complicated and bizarre series of entwined occurrences and coincidences. As it turns out, the esoteric topic 'The quality of life' and the research project led by a firm-handed but lovely Russian woman, combined with the blindness of love, is what makes this story no less than remarkable. What at first appears as a mundane, boring and predictable theme, unfolds with elegance and skill. An excellent plot mixed in with just enough philosophy and psychology to keep the reader going until the very end."
This is a fantastic book which I can recommend highly for those readers out there who do not shy away from slight complexity and an occasional vagueness in pursuit of the more intellectual awards these kinds of books have to offer.