From BAFTA Award-winning writer Tony Marchant and director Marc Munden, and starring Gerard Kearns, Matthew McNulty, Leo Gregory and Shaun Dooley, The Mark of Cain is a provocative, graphic and moving drama portraying a group of young British soldiers in Iraq.

Life-long friends Shane Gulliver (McNulty) and Mark 'Treacle' Tate (Kearns) are both 18-year-old privates serving in Basra in 2003. It's their first tour of duty and they want to go home and say they did something. But their rules of engagement as peace-keeping troops force them to face complex situations they'd never anticipated and to make instant moral judgements in a highly-charged, life-threatening and brutal environment.

The Mark of Cain follows these young men as they experience the reality of soldiering for the first time and are permanently affected by what they see and do. But rather than heroic stories, when they return all they bring home are tawdry trophy photos. And their discovery results in dramatic consequences that change both their lives irrevocably.