Mark Unwin is one of four employees of Krielsen International oil company captured by militant group MEND whilst they are working in Nigeria. His wife Claire flies out with Alice Onuko, Nigerian-born, British-raised P.R. for Krielsen. When the women arrive in Port Harcourt they are told a ransom has been agreed - as is the norm since MEND depends on ransoms to fund itself. However when civil rights worker Keme, acting as go-between, escorts the women to the handover place they find only the corpses of Mark and his co-workers. Next day Claire meets a journalist who tells her the men were killed by the Nigerian government after their release by MEND and he is himself later found dead. She also learns that he was having an affair with Angel, a prostitute, whom she confronts but who is whisked away in a car before she can say anything. Alice is equally shocked to find that her father has made his money less than scrupulously from oil. Keme is jailed but Alice levers Tunde, the police ...