An androgynous man and his companion show us their photographs. They are like bland holiday snaps but there is an oddness to them. The last two show yellow moons where the men's own faces should be. "This is how we really look," he explains. "What you see now is a disguise. We have made a fantastic journey. In the year 3070 we paid a huge sum of money to travel backwards in time to your present. On the trip various things went wrong and our features became grossly distorted. We need help."