When the Doors Opens illustrates the flow of time and spatial transformation. With a long take of the platform doors at an MTR station with passengers going in and out of a train, time qoes fast and slowly while space is integrated and separated, dense and loose. The relation of time and space interacting with people weaves a symphony of city life.

作品以時間流動和空間轉化為主題,利用長鏡頭拍攝地下鐵月台幕門前的人來人往，表達時間的快慢交接和空間結合及散落的時密時疏，借人潮與時空的交錯編織出一曲城市 生活的交響樂。