The action/spy movie "Switch" tells an intriguing story involving two men and two women. Special agent Xiao Jinhan (Andy Lau) and insurance company employee Lin Yuyan (Zhang Jingchu) are on a mission to protect the world-famous drawing "Fu Chun Shan Ju Tu", which is the target of a Japanese gangster (Tong Dawei). Taiwan sweetheart Lin Chi-ling portrays a mysterious women in the film.