Sunlight on cold water

"Gilles Lantier is thirty-five, attractive, with a beautiful mistress and a job in Paris as a journalist. He seems to have all that life can offer. But suddenly he is overwhelmed by despair. Nothing seems worth while. In panic at his boredom, and hating Eloise, his model girlfriend, he flees for some peace to his sister and her dull husband in the provinces. Here he meets Nathalie, the wife of a country lawyer. She falls deeply in love with him, a passion to which he soon responds. But back in Paris her innate goodness contrasts oddly with the frivolity of Gilles's life. Soon it seems as if their relationships is doomed, as if their happiness is a mere gleam of sunlight on cold water"--Page 4 of cover