More and more of us here in Northern Ireland are choosing to work at night. Over the course of one single night last year, we've followed six people who have turned their back on the normal 9-to-5, in favour of working during the hours of darkness. These include a taxi dispatcher, a homeless shelter worker, a night-time photographer, a street cleanser, a power station manager and two turkey farmers. On the 21st December 2013 the sun set at 15.53 not rising again until 8.04 the next the morning, making it officially the longest night of last year. This is the story of what happened during the course of that night.