Theatre503 is the most important fringe theatre for new writing in the country. In one year alone they receive 1,500 unsolicited scripts for submission (they have an open submission policy, all year round). They put on the standard London fringe month-long performance runs – but have an interesting program of small “one-off” events. To go and see something with more of a workshop feel, with more of a “this is being created right now” aesthetic is a joy, and one so well curated by Karis Halsall over three nights in January. 503Fusions at Theatre 503 was a 70 minute long piece with four parts to it, all written by different groups of multi-talented people.