When Charlotte is kidnapped by Middle Eastern dictator Kassem, panic is only held at bay by a sardonic Inner Voice, which alternately consoles and condemns. While Kassem appears determined to explain every warlike action, Charlotte attempts to instill humanity in the dictator. Inner Voice's incredulity at such hubris provides much-needed comic relief in an increasingly tense situation, as unbearable loneliness unleashes a storm of unexpected sexual fantasies and complex feelings.

When the promised release date comes and goes, Charlotte embarks on a hunger strike, which ultimately brings about a joyful reunion with her family. However, home life quickly disintegrates into another form of confinement, as Charlotte discovers that Kassem had used her for his propaganda, live streaming their interactions online. Media interest drives the introverted writer even further inward; as her ability to function normally deteriorates, Charlotte becomes convinced that her existence is a liability for her children.

Ultimately a post-modern fable, the novel cleverly plays with perceptions of truth while exploring the concept of imprisonment, the wider impacts of social media, and challenging widely held assumptions about fame. A Hostage probes Western political naivete along with novelistic hubris as it, often hilariously, explores the relationship of the individual to society.