Discount sale on The Mousetrap tickets

Famously the world’s longest consistently running play –  pandemic excepted – Agatha Christie’s Mousetrap has now been running for 68 years, and is one of those plays that everyone is presumed to see once in their lives.
The murder-mystery storyline is set at “the present”, which presumably means England as it was around the time when the play came out in 1952, including postwar continuation of World War II rationing.
As news spreads of a murder in London