The film tells 6 love stories in the scorching sun: a middle-aged driver in Hong Kong (Jacky Cheung) meets a foot-washing girl in Shenzhen (Rene Liu) for some reason, and they fall in love with each other; in Shenzhen, Wasabi (Vivian Hsu) has been waiting for the soy sauce master (Daniel Wu) to respond to her love, but the other party has his own difficulties; in Hong Kong, an uncle selling parasols on the beach (Gigi Lau) promotes jokes, but his heart is always concerned about his deceased wife; in Shenzhen, a repairman Wei (Nicholas Tse) meets a speeding girl (Barbie Hsu) and they collide sparks flew; a Beijing photographer (Duan Yihong) was dissatisfied with the model's performance, and the latter left in anger, but he suddenly became blind. Accompanied by his assistant (Fu Xinbo), they chased to Shenzhen, each with their own thoughts; 20 years ago in Zhenjiang, a country boy (Jing Boran) fell in love with a textile worker (Angelababy) and accepted a love vow that he had waited for 100 days under the scorching sun... This film stars many stars, including Maggie Cheung, Asa, Shawn Yue, Joey Yung and other friendly guest appearances.