The film tells the story of Gel (Eva Mendes), a young indigenous woman from the Iban tribe in Sarawak, Malaysia. Gel is chosen to be a "sleeping dictionary" – a person who sleeps with Western men to help them learn the local language and customs. The practice is a tradition among the Iban people, where women are sent to sleep with foreign men to learn about their culture and language.
Before discussing the Lk21 aspect, let’s understand the film itself. Film The Sleeping Dictionary Lk21