One day, Heng saves a woman, Ms. Yip, from drowning in his school’s pool. When she turns out to be Heng’s new substitute teacher, the pair’s mutual loneliness draws them to each other.

• Carina Lau
• Ng Siu-Hin
• Stephen Tung Wai
• Tse Kwan-Ho
• Jennifer Yu
• Tina Lau Tin-Lan