Amongst the traffic, the buzz of people in a Lisbon square there are 4 construction workers: Toughy, Fatso, Squeky – Clean and Skinny. They have some time to kill after lunch . They sit in the street to watch the people go by, to chat, to talk to themselves and look at the moon. A workmate, tired, upset,worried, guilty, comes to them chewing gum. He asks them to give blood for his brother…