The End of the Affair by Graham Greene

'One of the most true and moving novels of my time, in anybody's language' William Faulkner

The love affair between Maurice Bendrix and Sarah, flourishing in the turbulent times of the London Blitz, ends when she suddenly and without explanation breaks it off. After a chance meeting rekindles his love and jealousy two years later, Bendrix hires a private detective to follow Sarah, and slowly his love for her turns into an obsession.