Imprisonment is a recurring motif in Love Sonia – a film about sex trafficking. Women live and work in cage-like rooms. Films like this are a tightrope act. The material is inherently ugly. And the narrative needs to convey the horror and tragedy without making the viewer turn away. Thankfully Tabrez conceals as much has he reveals. He has spent more than a decade nurturing the project and working with NGOs. Which gives Love Sonia an authenticity – the brothel is a labyrinth of corridors, rooms and narrow spaces covered by saris where sex is traded.