London's biggest arts festival is returning: make your way underground for six weeks of creativity, innovation and chaos at Vault Festival. With more than 100 different shows spread across eight incredible venues, you're not going to find anything else like it above or below ground any time soon. Richard Marsh writes and performs plays, poems and radio bits. His poetry sitcom, Cardboard Heart was on Radio 4 this autumn. His play Skittles was commissioned for Radio 4 and won Best Scripted Comedy at the BBC Audio Drama Awards. He co-wrote and co-performed Dirty Great Love Story with Katie Bonna, which won a Fringe First award for outstanding new writing at the Edinburgh fringe. Basically, he's one talented dude, and he's going to be doing his thing at Vault. Don't miss it. Show takes place in the Cage space. Running time is approximately 90 minutes. The venue entrance is in a graffiti tunnel under Waterloo and can be a bit tricky to find, so give yourself good time to get there.