 In 1936, the expatriated young and naive just-graduated British John Truscott (Hugh Dancy) arrives to the Sarawak, a British colony, to work in the Iban society. The beautiful Selima (Jessica Alba) is assigned to be his "sleeping dictionary", to live and sleep with him and teach him the language and habits of the locals. The reluctant John and Selima fall in love for each other in a forbidden romance.