在一栋百年老楼里，阴郁的城市少年左左爱上了房客悠悠，虽然左左的爱痴迷而固执，悠悠却不为所动。几番挣扎后，左左用铜丝谋杀了悠悠死心塌地爱着的已婚男子陈年，在终于娶到悠悠之后，他发现自己并没有得到爱情......那三根散发着美丽金属光泽的铜丝，其中两根成全了他的爱情，那最后一根铜丝，他将送给谁？（In a century-old building, the gloomy city teenager Zuozuo fell in love with the tenant Youyou, although Zuozuo's love is obsessed and stubborn, Youyou was never moved. After struggling, Zuozuo killed the married man Chennian that Youyou deeply loving with copper wire. Finally he succeeded in marrying Youyou, but he found he never get the love from her......Two of those three copper wires exuding a beautiful metallic luster fulfilled his love, and when it comes to the last copper wire, who does he present to?）