诽谤罪

前战俘洛登爵士，在一份小报登载了其昔日战友称他为冒牌货的信件之后，以诽谤罪向法庭提起诉讼。这是一部环环相扣的悬疑电影，令观众在猜测推理与身份迷雾的重重笼罩下兴奋不已。A Canadian commercial pilot sees a telecast in London of an interview with Sir Mark Lodden (Sir Dirk Bogarde) at his home. The Canadian is convinced that the baronet is a fraud, that he is actually a look-alike actor named Frank Welney (Sir Dirk Bogarde). The Canadian, the baronet, and the actor were all prisoners in the same German camp during the war and escaped together. One of them disappeared during the escape. Was he Sir Mark or Welney? The tabloids have a field day with the Canadian's accusations, and Lady Margaret Lodden (Olivia de Havilland) urges her husband to sue for libel and engage the distinguished barrister Sir Wilfred (Robert Morley). The long drawn-out case is made complex by the fact that Sir Mark is not quite sure of his identity. Injured in the war, he stutters on occasion and has difficulty remembering portions of his life. As the evidence sways back and forth in court, it begins to appear that Sir Mark is an impostor and the possible murderer of the missing ...