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The Man Who Knew Too Much (1956) - Plot Summary Poster

Plot Summary

  • While attending a medical conference in Paris, American physician Dr. Ben McKenna, his wife, retired musical theater actress and singer Jo McKenna née Conway, and their adolescent son Hank McKenna decide to take a side trip to among other places Marrekesh, French Morocco. With a knife plunged into his back, Frenchman Louis Bernard, who the family met earlier in their bus ride into Marrakesh and who is now masquerading as an Arab, approaches Ben, cryptically whispering into Ben's ears that there will be an attempted assassination in London of a statesman, this news whispered just before Bernard dies. Ben is reluctant to provide any information of this news to the authorities because concurrently Hank is kidnapped by British couple, Edward and Lucy Drayton, who also befriended the McKennas in Marrakesh and who probably have taken Hank out of the country back to England. Whoever the unknown people the Draytons are working for have threatened to kill Hank if Ben divulges any information told to him by Bernard. With what little information they have on hand, Ben and Jo head to London to try and thwart the assassination attempt and more importantly find an alive and safe Hank. Scotland Yard is aware of some pieces to the puzzle, including the fact that Bernard was a French secret service agent and that there will be an assassination attempt on someone. They and the McKennas will have to work together as they hit a diplomatic roadblock, one that may be overcome with a special Jo Conway song.

    - Written by Huggo
  • Dr. Ben McKenna, his wife Jo and their son Hank are on a touring holiday of Africa when they meet the mysterious Louis Bernard on a bus. The next day Bernard is murdered in the local marketplace, but before he dies he manages to reveal details of an assassination about to take place in London. Fearing that their plot will be revealed, the assassins kidnap Hank in order to keep the McKenna's silent. Ben and Jo go to London and take matters into their own hands.

    - Written by Col Needham <col@imdb.com>
  • The man who knows too much is American doctor Ben McKenna. On holiday in Morocco with his wife Jo and his eight-year-old son Hank, he inadvertently witnesses a murder in a market and becomes privy to a plot of political assassination. This being masterminded by the Draytons, an English couple they have met in a restaurant, and is due to take place in London in a few days' time. In order to prevent McKenna from going to the police, the couple kidnap Hank. Ben is warned not to tell the police what he knows. Hank's life depends on his silence.

    - Written by filmfactsman
  • A family vacationing in Morocco accidentally stumble on to an assassination plot and the conspirators are determined to prevent them from interfering.

    - Written by Kenneth Chisholm

Synopsis

An American family, Dr. Ben McKenna (James Stewart), his wife Jo (Doris Day) and their son Hank (Christopher Olsen) are on vacation...

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