In 1880s London, pornographic bookseller Verloc is a double agent for the Russian government, providing information to Chief Inspector Heat about a lazy anarchist organization. In order for the anarchists to be arrested, an act of terrorism must occur. So Verloc decides to set up bombs – which leads to tragedy – not only for himself but also for his family, including wife Winnie and brother-in-law, Stevie.

Set in a small politically unstable Latin American country, the story follows the half English and half Latino Dr. Eduardo Plarr, who left his home to find a better life. Along the way he meets an array of people, including British Consul Charley Fortnum, a representative in Latin America who is trying to keep Revolution from occurring. He is also a remorseful alcoholic. Another person the doctor meets is Clara, whom he immediately falls in love with, but there is a problem: Clara is Charley's wife.

Cynical British journalist Fowler falls in love with a young Vietnamese woman but is dismayed when a naïve U.S. official also begins vying for her attention. In retaliation, Fowler informs the communists that the American is selling arms to their enemy.

Biographer Margaret Lea travels to the isolated rural mansion of the famous writer Vida Winter, who asks her to write her biography. Although initially she is reluctant, as Vida is known for constantly distorting the facts of her life, Margaret soon becomes fascinated with the story of a dark childhood, a disturbing tale that leads her to finally confront the traumas of her own past.