It's not strictly happening today, however you should better book on time because it tends to become sold out very quickly.
A Christmas Carol, narrated by skilled British storyteller Ashley Ramsden, is the most Christmassy thing you could possibly do this year.
Definitely a must see and I should know, since I have seen it at least 5 times and brought to the shows everyone I know.
Shows are on the 12, 17 and 21, with or without convivial dinner afterwards, hosted by Mr Scrooge in person.
Three cheers to STET for bringing it back once again!