L’altro

A forty-year-old is walking on a cloudy day. A cloud of red sand imprisons him. He finds himself in a room sitting next to a customer who knows him but is a stranger to him. The customer knows his name, knows where he works, where he lives. He becomes intractable and chases the man away. At home. His children ignore him and his wife looks puzzled. The phone rings, her wife answers and on the other hand her husband warns her that she will be late. She is shocked. Who is that man sitting in the living room?