A rite of passage for everyone in the city, this classic Agatha Christie murder mystery play is the theatre equivalent of tea, jam and scones: timeless, perfectly British, and better shared in person. It’s a delectably biting whodunit that still keeps audiences on the edge of their seats seven decades later. The ultimate brag? Audiences are sworn to secrecy, so when anyone asks how it was, just smile and say, “You’ll have to come see it for yourself.”