"In 'With Her Smile', a chance encounter between two lonely souls sets off a chain of events. Heng (Ng Siu-Hin) saves his classmate Cheung Chi Hang's substitute teacher Ms. Yip (Carina Lau) from drowning in the school pool, only to discover she's his new teacher. As they navigate their complicated relationships and personal struggles, Heng finds himself drawn to Ms. Yip despite her troubled past with a cheating husband (Stephen Tung Wai)."