As night begins to fall at HowTheLightGetsIn, the Ring and Arena sites turn from a hub of intellectual activity into a den of hilarity and mayhem. But of course the jokes are smart too. With an indecently funny comedy line-up, the laughs are (almost) guaranteed to drown out the party next door. In the past we've been joined by comics such as Marcus Brigstocke, Sarah Keyworth, and Ahir Shah rubbing shoulders with some of the best up-and-coming talent on the UK comedy circuit. Get ready to laugh so hard you'll need medical attention.