A new improvised comedy show opens next week, promising to offer a one-off experience for those watching.
The start point for each performance is birthdays, and the cast - led by comedian and broadcaster Marcus Brigstocke - will take ideas from the audience to create characters and stories.
It's called There Will Be Cake. Marcus spoke to Anthony Baxter about the show.
There Will Be Cake is at the Omnibus Theatre in Clapham from the 26th-30th September.