Agatha Christie’s snowbound guest house: one room, eight people, and any of them could be the killer.
The Mousetrap — London West End
The Mousetrap opened in London in 1952 and has played at St Martin’s Theatre since 1974, the longest-running play in the world. It is set in a country guest house cut off by snow: eight people, one murder, and a police sergeant who arrives on skis. It is not a musical and has no big stage machinery; the suspense comes from entrances, pauses, dialogue and accusations that keep shifting your judgement. It runs about 2 hours 5 minutes, including a 20-minute interval.
Archive venue exterior for identifying St Martin's Theatre; not the current cast or production onstage. · Report image rights
GOWOAH / London A REASON TO GO
St Martin's Theatre, West Street, WC2H 9NZ2026.09.15 — 2027.07.17Stage playsTicket required
FIND YOUR REASON
What draws you to this experience?
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Eight people, and any one could be the killer
The snow traps eight people in one sitting room, and every entrance and every accusation moves suspicion to someone else.
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You follow the clues and guess the killer, and are proved wrong more than once; that is the fun. At the curtain call the cast asks everyone to keep the killer secret, a tradition more than seventy years old.
Stage plays
02
One set, all on the actors
No effects and no scene changes: one sitting room, one set, and the suspense rests on dialogue, pauses and the tension between the actors.
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A 2025 audience member loved exactly that, a classic play told with one set and one costume change.
Stage plays
03
A theatre that plays only this
St Martin’s Theatre has played nothing but The Mousetrap since 1974. The small historic house puts you close to the characters, near enough to catch every pause and glance.
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You come for a whodunit, and also for a theatre tradition unbroken for more than seventy years: generations of actors stepping into the same story, generations of audiences leaving to keep the same killer secret.
Agatha Christie readers who like to follow the clues and guess the killer
Anyone who wants a proper old-school West End play rather than a musical
Before you decide
The cast rotates; the list was only checked up to 14 September 2026.
The stage is high, and a sofa can block some action from the front rows; a 2026 visitor suggests sitting a little further back, and you should check your seat on the live seat map.
The dialogue is all in English, usually without captions; if that is hard work, read the story or a synopsis first.
There are no effects or scene changes; if you want spectacle or a fast pace, this is not the one.
FIND YOUR PLACE
Find the view that suits you.
This is a fixed-seat theatre without verified interactive geometry in the CMS. Use the official booking flow for live seats; no pricing or sightlines from another production are reused.
Photos from this show come first; those from other shows may have a different stage and obstructions.
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FROM AN IDEA TO A PLAN
Make a plan that works for you.
01
Dates & times
2026.09.15 — 2027.07.17
Current booking horizon verified through 17 July 2027. Before 9 Nov 2026: Tue/Thu/Sat 15:00 and Mon–Sat 19:30. From 9 Nov: Wed/Fri/Sat 15:00; Mon/Wed/Fri/Sat 19:30; Tue/Thu 19:00. Check the selected date.
Europe/LondonMore programme details
Eight people, and any one could be the killer
One set, all on the actors
A theatre that plays only this
02
Venue & travel
St Martin's Theatre, West Street, WC2H 9NZ
The theatre is on West Street in London's West End. Follow the official Find Us guidance and allow time for entry and ticket collection.
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Entry & companions
Ticket required. Running time is about 2h 5m including a 20-minute interval. Limited GBP 29.50 Rush tickets open at 10:00 on TodayTix for each performance and are not guaranteed.
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Tickets & access
GBP 25–94
For accessible seating or assistance, confirm arrangements through the theatre's official Access route or box office before booking.
Sources & image credits
Dates and entry details refer to this edition; individual sessions may differ.
The start field records the first bookable date after this batch’s cutoff, not the production’s opening night. The end field uses the explicitly stated booking-until date of 17 July 2027, checked on 14 September 2026; it marks the current booking period, not a permanent closing date. The official cast page does not give an end date for this cast, so the list reflects the verification date only. Future performances may feature cast changes or understudies.
Stage playsMaggi Hambling’s Scallop, a tribute to Britten on the beach at Aldeburgh, August 2010; the opera is set in an east-coast fishing village like this. Not the production.
Stage playsA scene from the 1884 La Scala premiere of the four-act Don Carlo, painted by Giuseppe Barberis and Carlo Cornaglia; a public-domain image, not this production.
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