The Mousetrap
Agatha Christie's classic whodunnit, the longest continuously running play in the world.
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Overview
The Mousetrap traps a group of strangers in a snowbound guesthouse with a murderer among them — a classic Agatha Christie whodunnit that's become as famous for its longevity as for its plot. It opened in the West End in 1952 and has run continuously since (aside from a brief pandemic closure), making it the longest continuously running play anywhere in the world.
Audiences are traditionally asked not to reveal the ending after the show — a tradition that's stuck for over 70 years and is very much part of the fun of going.
Visitor information
St Martin's Theatre is a small, traditional playhouse just off Leicester Square, in the heart of Theatreland.
Getting there
Leicester Square Underground is a couple of minutes' walk away.
Age guidance
Suitable for most ages from around 10 up; it's a classic mystery thriller with mild suspense rather than graphic content.
Accessibility
Wheelchair-accessible seating is available and should be arranged with the box office in advance given the theatre's smaller, older layout.
Frequently asked questions
Is it true you're not meant to reveal the ending of The Mousetrap?
Yes — it's a long-standing tradition, announced at the end of every performance, and part of the show's identity.
How long is The Mousetrap?
Around 2 hours including an interval.