An epic story of love and civil war set in Nigeria during the 1960s, Half of a Yellow Sun recounts the lives of three characters caught up in events larger than themselves: Ugwu, a young houseboy working for an idealistic university professor; Olanna, the professor’s mistress; and Richard, a British expatriate in love with Olanna’s twin sister, Kainene. As the war escalates, their relationships are thrown into jeopardy when Richard spends one drunken night with Olanna.