Yau Wai falls in love with a middle-aged, married dancer, Casta. He arranges a casual encounter with Casta and then dines with her. They also practice dancing in Casta's home. Casta is drunk and falls asleep in Yau Wei's arm. Casta's husband suddenly appears...
有為在跳舞學校裡結識中年女子卡斯塔，對她產生愛慕之情。二人往酒吧去，她借酒澆愁，原來卡斯塔的丈夫經常冷落她。有為想討她的歡心，在朋友協助下，進行一連串特訓。二人在街上邂逅，往餐廳進餐喝酒。他們在她的家中練習舞步。卡斯塔「醉倒」，有為沒有乘人之危。她的丈夫突然出現......
