Overview:CHIT is turning eighteen soon. UNCLE KEUNG, an old neighbor of his, pays him a sudden visit and hands him a letter that sent to his place by mistake many years ago. CHIT is astonished to see that it was from his mother, WONG FA, whom he has lost contact with for ages. Seeing that CHIT does not have any idea to manage the letter, WAH tricks him into opening it. In the letter, FA wrote that she had returned to Hong Kong when CHIT was four years old, and that he had pushed her down the escalator by accident. CHIT is upset upon finishing reading it. He goes to SHUN, a good friend of his late father, to ask him about his mother. SHUN takes out a pile of letters that LAM has sent him over the years but bounced back by HANG. Looking at the letters, CHIT is even more confused. LAM, who is watching them nearby, bursts into tears. CHIT does not know whether he should read the letters or not.… ...