That show, of course, is Wise Children's magnificent production of Romantics Anonymous.
The central performances from Marc Antolin and Carly Bawden as Jean-Renee and Angelique stop me in my tracks, because I am these people.
Let me explain.
It's a story where you know the ending from the beginning: you know these people are going to be together by the time we get to the end. It's more a musical about discovering why these people have the imperfections that they have, and how they learn to live with them, and each other.
This is none more prominent in the number "If She Loved Me", sung by Jean-Renee. He has followed Angelique to the support group Les Emotifs Anonymes (which stays in French, because, as Angelique puts it, who would go to something called 'Emotionals Anonymous'?) because he has realised that he can't live without her.
"I'm not good with words, I'm just not equipped,
perhaps I'm afraid and so I stay tight-lipped,
but I could be something to see, if she loved me."
Sure, I've had emotional reactions to songs before (the two main examples being Defying Gravity and Being Alive), but there is something about If She Loved Me that gets me in a way nothing has before. The lyrics honestly could have been written about me, especially me at the beginning of the year.
It's a feeling that I can't really explain, but it's just one of those moments in musical theatre where you see yourself looking back at you, and it's a lot to take it.
Je suis emotif and all that.
The world needs more Madame Marini's
Because of them bubbling together as a unit, the show was performed in it's entirety, without the need for social distancing.
I've always been a fan of her work, from the first piece of hers I saw at the Globe (her superb production of Twelfth Night - who'd have thought Le Gateux Chocolat singing I Will Survive would work so well?!) and then her Kneehigh production of The Flying Lovers of Vitebsk (starring Marc Antolin).
Emma said something that has stuck with me since Sunday, and it really is so true of how we are all feeling now.
"We are meant to be together, we are meant to be on this planet and we are meant to tell stories"
I don't think there was a dry eye in the house by the time she was done speaking, and that was before the show had started.
For a week, Emma Rice managed to create some normality in these weird times. Apart from there being less people in the auditorium, we saw a full production with it's full cast, and it was utterly wonderful
These people, this show, this theatre, this music - it's all so personal to me in a way that I don't think any show has ever been (or possibly will ever be again.) You so rarely get a show that is 'your show' and I think this truly is mine.