It's Andy's first day as a volunteer at the Comfort Support Line call centre, which offers the lonely and desperate a chance to talk about their problems. All the CSL counsellors have their own ways of dealing with clients, coping with the emotional stress and killing time between phone calls. But is Andy really prepared for what's to come?

It is Nana's special day: it isn't every day you get to be 79. She is excited about spending the afternoon with her whole family - even Pat and Jim, who both love a great practical joke. Her Angela has put on a lovely spread, including a huge cake. But as Nana says, 'Don't worry about the future: you can't predict it'.

Seven disparate characters share their stories with a camera, their fates inevitably, inextricably and unknowingly set for a head-on collision.