Deadline reports that Katie Leung is set to star in One Child for SundanceTV and BBC Two. The show is a four hour mini-series centered around Mei, who Katie will be portraying. The show will begin filming this May in London and Taiwan for a late 2014 premiere on SundanceTV. A short description of the show may be read below.

Penned by BAFTA-winning writer Guy Hibbert (Five Minutes Of Heaven), One Child, a BBC Drama production for BBC Two, stars Harry Potter franchise alumna Katie Leung as Mei, a first-born Chinese girl adopted by English parents, who gets called back to Guangzhou when her birth mother desperately seeks her assistance in her son. How far will Mei go to help the woman who gave her away and the brother she’s never met? “One Child is a deeply affecting work that delves into the heart of a human struggle,” said SundanceTV President Sarah Barnett. “It tells the story of an ordinary young woman who is plunged into a situation that challenges her to her core.”