The Man Who Knew Too Much
"A little knowledge can be a deadly thing!"
On vacation in Morocco, American doctor Ben McKenna and his wife Jo, a former nightclub singer, witness a brutal murder that shatters their trip. The crime seems simple, yet it opens a corridor into a tangled web of international intrigue. Their young son is kidnapped, forcing the couple to... Read more
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Streaming availability last verified: February 25, 2026
About The Man Who Knew Too Much
On vacation in Morocco, American doctor Ben McKenna and his wife Jo, a former nightclub singer, witness a brutal murder that shatters their trip. The crime seems simple, yet it opens a corridor into a tangled web of international intrigue. Their young son is kidnapped, forcing the couple to decide how far they will go to save him. To keep him safe they must play along with those who killed the man while chasing whispers, coded notes, and suspicious locals. As the stakes rise, they trek through crowded souks, dim hotel corridors, and shadowed back streets, learning that private fear can cross borders and drag strangers into a dangerous game. The film follows their escalating paranoia as they misread friendly faces and race against a moving deadline before their son vanishes. Hitchcock ramps up tension with claustrophobic spaces and a web of ambiguous motives that keeps the audience guessing until the end.
Directed by Alfred Hitchcock, this 1956 thriller reimagines his own 1934 film of the same name, updating the setting for mid century intrigue. The screenplay was crafted by John Michael Hayes along with Charles Bennett and D B Wyndham-Lewis, refining suspense and pacing.
With a budget of 1.2 million, the film grossed around 11.3 million worldwide, a solid return that underscored Hitchcock's pull at the box office and the star power of James Stewart and Doris Day.
Across Hitchcock's canon this film helped anchor the idea that ordinary people can be caught in lethal global games. Morocco's sunlit streets, a sparse musical cue, and a pivotal kidnapping sequence became enduring touchstones for modern thrillers, influencing later films and TV thrillers about parental peril.
Critics praised its brisk pacing and the way Stewart and Day play through delicate moral choices under pressure. Themes of parental love, political manipulation, and the erosion of trust under a watchful world come through in sharp, unsentimental terms, delivering a clear message about the reach of danger.
Details
- Release Date
- May 16, 1956
- Runtime
- 2h
- Rating
- PG
- User Ratings
- 1,526 votes
- Type
- Movie
- Genres
- Thriller, Mystery
- Country
- United States
- Studio
- Paramount Pictures
- Budget
- $1,200,000
- Box Office
- $11,300,000
- External Links
- View on IMDB
Official Trailer
Cast
James Stewart
Dr. Ben McKenna
Doris Day
Jo McKenna
Brenda De Banzie
Lucy Drayton
Bernard Miles
Edward Drayton
Ralph Truman
Buchanan
Daniel Gélin
Louis Bernard
Mogens Wieth
Ambassador
Alan Mowbray
Val Parnell
Hillary Brooke
Jan Peterson
Christopher Olsen
Hank McKenna
Director: Alfred Hitchcock
Written by: John Michael Hayes, D.B. Wyndham-Lewis, Charles Bennett