三歲細路強仔籌備已久的登月計劃,無意間令潦倒沓碼仔陳力幾乎送命;迷上老師讓佳文感到患得患失,都沒想到時常擦肩而過的Frankie會是她的守護天使;老實男Kevin在老婆臨盆在即之際,邂逅來澳門開工的美豔小姐Mimi⋯⋯六個人各有各「黑仔」,一幕幕生活的例外狀態,就如過雲雨般突如其來。城市太小,巧合太多,非比尋常的貪嗔愛慾,每個人都試圖在這小城裡找尋自己的運氣。

Three-year-old Keong has long planned for his moon landing project, but it almost results in the accidental death of Chan Lek, a penniless and miserable betting agent. Carman is having an affair with her teacher, and worries about losing everything. Frankie, the guy Carman routinely brushes off, surprisingly becomes her guardian angel. Kevin is a devoted family man expecting his first child with his wife, but he unexpectedly meets Mimi, a seductive prostitute who moved to Macau to earn her living. In this small city full of greed and rage and love and desire, everyone has good days and bad days. Extraordinary moments and serendipitous chance arrive as suddenly as a passing rain.