The purpose of this essay is to look into how Jean Rhys describes the complexity of colonialism in the Caribbean and how it affected the colonized people and the European colonizers. Her novel Wide Sargasso Sea is considered to be a re-writing of Jane Eyre, but it also demonstrates social rankings and racial groupings in the colonial society. She does not only describe Mr. Rochester’s first wife, she also depicts the forbidden love story between Antoinette and her “coloured” cousin Sandi. The analysis will have a postcolonial approach by using postcolonial theory and concepts, for example, Said’s concept about the Other, Fanon’s ideas about the psychological effects on the oppressed and Bhabha’s theory about colonial mimicry.