https://en.wikipedia.org/wiki/The_Mousetrap

The Mousetrap is a murder mystery play by Agatha Christie. The play opened in London's West End in 1952 and ran continuously until 16 March 2020, when the stage performances had to be temporarily discontinued during the COVID-19 pandemic. It then re-opened on 17 May 2021. The longest-running West End show, it also has by far the longest run of any play in the world, reaching its 30,000th performance on 19 March 2025.[1] Attendees at St Martin's Theatre often get their photo taken beside the wooden counter (showing a count of the number of performances) in the theatre foyer.[2] As of 2022 the play had been seen by 10 million people in London.[3]