Neighbors in a block wake one morning to find they have been sealed inside their apartments. Can they work together to find out why? Or will they destroy each other in their fight to escape?

• Bright Cold Day Films
• Patchwork Productions
• Louise Brealey
• Lee Ross
• Sheila Reid
• Pippa Nixon
• Claire Greasley
• Andrew Leung
• Billy Postlethwaite
• Hannah Chalmers