This is a different sort of John Le Carre book. It is more of a psychological study than a traditional spy novel.
"Aldo Cassidy, a tycoon caught frantically between two astonishing loves. Trapped with him are Shamus, a wild artist who carouses by day or night, and Helen, the artist's nakedly alluring wife. Who will wind up with whom is only one of the mysteries in a world founded upon spontaneity and feeling..."