'2055' has been living for 40 years in an institution that allows him to live in isolation by his own will. He can open the door to the sunlight voluntarily. One day he is surprised by a repairman on the other side of the glass, he comes to check the phones on the wall. It comes to a conversation. After 40 years of isolation, how does '2055' react to a filtered human voice? Does he still have feelings when he looks someone in the eye?