"Lost in Beijing" is a 2007 Chinese drama film directed by Li Yu. The film tells the story of a young couple, Liu Pingguo and An Kun, who work as masseurs in a massage parlor in Beijing. When An Kun wins a large sum of money in a lottery, he becomes embroiled in a complex web of relationships and power struggles with his boss, Mr. Lin, and his wife, Wang Mei.

As the tensions between the characters escalate, the film explores themes of power, desire, and the corrupting influence of money. The film is notable for its frank depiction of sexuality and its portrayal of contemporary life in urban China.

"Lost in Beijing" received critical acclaim for its powerful performances and its unflinching portrayal of the struggles faced by ordinary people in modern-day China. The film was also noted for its realistic and unsentimental depiction of the complexities of human relationships.

Overall, "Lost in Beijing" is a powerful and thought-provoking film that offers a nuanced and compassionate look at the lives of working-class people in urban China. It is a testament to the power of cinema to capture the complexities of the human experience and to shed light on the social and political issues that shape our world. However, it should be noted that the film contains mature themes and may not be suitable for all viewers.