The Man Who Knew Too Much poster

The Man Who Knew Too Much

"A little knowledge can be a deadly thing!"

Movie PG 1956 2h 7.4 /10
Directed by Alfred Hitchcock

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

James Stewart

Dr. Ben McKenna

Doris Day

Doris Day

Jo McKenna

Brenda De Banzie

Brenda De Banzie

Lucy Drayton

Bernard Miles

Bernard Miles

Edward Drayton

Ralph Truman

Ralph Truman

Buchanan

Daniel Gélin

Daniel Gélin

Louis Bernard

Mogens Wieth

Mogens Wieth

Ambassador

Alan Mowbray

Alan Mowbray

Val Parnell

Hillary Brooke

Hillary Brooke

Jan Peterson

Christopher Olsen

Christopher Olsen

Hank McKenna

Director: Alfred Hitchcock

Written by: John Michael Hayes, D.B. Wyndham-Lewis, Charles Bennett

Frequently Asked Questions

The Man Who Knew Too Much is not currently available on streaming subscription services, but you can rent or buy it on Apple iTunes, Google Play, Vudu, and Amazon Video.

With a rating of 7.4/10 from 1,526 viewers, The Man Who Knew Too Much is well-received and recommended by the community. It's a good pick if you enjoy thriller and mystery stories.

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 decid...

James Stewart plays Dr. Ben McKenna and Doris Day plays Jo McKenna. They are an American doctor and his wife who witness a murder and become entangled in a kidnapping plot while vacationing in Morocco.

Yes, the 1956 movie is Alfred Hitchcock's remake of his own 1934 film The Man Who Knew Too Much. It updates the setting and stars James Stewart and Doris Day.