The Secret Agent

Set in London in 1886, the novel follows the life of Adolf Verloc, a secret agent. Verloc is also a businessman who owns a shop which sells pornographic material, contraceptives and bric-a-brac. He lives with his wife Winnie, his mother-in-law, and his brother-in-law, Stevie. Stevie has a mental disability, possibly autism, which causes him to be excitable; his sister, Verloc's wife, attends to him, treating him more as a son than as a brother. Verloc's friends are a group of anarchists of which Comrade Ossipon, Michaelis, and "The Professor" are the most prominent. Although largely ineffectual as terrorists, their actions are known to the police. The group produces anarchist literature in the form of pamphlets entitled F.P., an acronym for The Future of the Proletariat.

The novel begins in Verloc's home, as he and his wife discuss the trivialities of everyday life, which introduces the reader to Verloc's family. Soon after, Verloc leaves to meet Mr Vladimir, the new First Secretary in the embassy of a foreign country. Although a member of an anarchist cell, Verloc is also secretly employed by the Embassy as an agent provocateur. Vladimir informs Verloc that from reviewing his service history he is far from an exemplary model of a secret agent and, to redeem himself, must carry out an operation – the destruction of Greenwich Observatory by a bomb. Vladimir explains that Britain's lax attitude to anarchism endangers his own country, and he reasons that an attack on 'science', the current vogue amongst the public, will provide the necessary outrage for suppression. Verloc later meets his friends, who discuss politics and law, and the notion of a communist revolution. Unbeknownst to the group, Stevie, Verloc's brother-in-law, overhears the conversation, which greatly disturbs him.

The novel flashes forward to after the bombing has taken place. Comrade Ossipon meets The Professor, who discusses having given explosives to Verloc. The Professor describes the nature of the bomb he carries in his coat at all times: it allows him to press a button which will kill him and those nearest to him in twenty seconds. After The Professor leaves the meeting, he stumbles into Chief Inspector Heat, a policeman investigating a recent explosion at Greenwich, where one man was killed. Heat informs The Professor that he is not a suspect in the case, but that he is being monitored due to his terrorist inclinations and anarchist background. Heat suspects Michaelis. Knowing that Michaelis has recently moved to the countryside to write a book, the Chief Inspector informs the Assistant Commissioner that he has a contact, Verloc, who may be able to assist in the case. The Assistant Commissioner shares some of the same high society acquaintances with Michaelis and is chiefly motivated by finding the extent of Michaelis's involvement in order to assess any possible embarrassment to his connections. He later speaks to his superior, Sir Ethelred, about his intentions to solve the case alone, rather than rely on the effort of Chief Inspector Heat.

The novel flashes back to before the explosion, taking the perspective of Winnie Verloc and her mother. At home, Mrs Verloc's mother informs the family that she intends to move out of the house. Mrs Verloc's mother and Stevie use a hansom driven by a man with a hook for a hand. The driver's tales of hardship, whipping of his horse, and menacing hook scare Stevie to the point where Mrs Verloc must calm him. On Verloc's return from a business trip to the continent, his wife tells him of the high regard that Stevie has for him and she implores her husband to spend more time with Stevie. Verloc eventually agrees to go for a walk with Stevie. After this walk, Mrs Verloc notes that her husband's relationship with her brother has improved. Verloc tells his wife that he has taken Stevie to go and visit Michaelis, and that Stevie would stay with him in the countryside for a few days.

As Verloc is talking to his wife about the possibility of immigrating to the continent, he is paid a visit by the Assistant Commissioner. Shortly thereafter, Chief Inspector Heat arrives to speak with Verloc, without knowing that the Assistant Commissioner had left with Verloc earlier that evening. The Chief Inspector tells Mrs Verloc that he had recovered an overcoat at the scene of the bombing which had the shop's address written on a label. Mrs Verloc confirms that it was Stevie's overcoat, and that she had written the address. On Verloc's return, he realises that his wife knows that his bomb killed her brother, and confesses what truly happened. A stunned Mrs Verloc, in her anguish, fatally stabs her husband.

After the murder, Mrs Verloc flees her home, where she chances upon Comrade Ossipon, and begs him to help her. Ossipon assists her while confessing romantic feelings but secretly with a view to possess Mr Verloc's bank account savings. They plan to run away and he aids her in taking a boat to the continent. However, her instability and the revelation of Verloc's murder increasingly worry him, and he abandons her, taking Mr Verloc's savings with him. He later discovers in a newspaper that a woman matching Mrs Verloc's description disappeared from the ferry, leaving behind her wedding ring before drowning herself in the English Channel.