The Scapegoat. Poster of the 1959 movie and cover of the 1957 book
VS3
The Scapegoat
Daphne du Maurier, 1957
movie vs book
Robert Hamer, 1959

John Barratt, a lonely, discontented teacher of French at a British university, vacations in France. There, by chance, he meets his double, French nobleman Jacques De Gué. They become acquainted. Barratt becomes drunk and accepts De Gué’s invitation to share his hotel room. When he wakes up the next morning, Barratt finds himself alone in the room, with his clothes and passport missing.