In 2013 her third play No Quarter was staged at the Royal Court, directed by Jeremy Herrin and starring Tom Sturridge.
In 2013 film director Nicolas Winding Refn confirmed I Walk With the Dead as his next project and that Polly Stenham was confirmed to write the screenplay with Refn. They stated that the film will have an all female cast. Refn admitted that he asked Stenham to write the screenplay to tackle his own perceived inability to write female characters. The project was later renamed The Neon Demon and was released in June 2016 to mixed reviews.