Other People's Lives

Brought to you by Penguin.

'Marriage was the biggest decision of their lives and yet they made it so lightly it was barely a decision at all’

As schoolgirls, Justine and her best friend Iseult dreamed of a future that revolved around marriage. They saw it as a happy ending, never imagining for a moment that the reality would be more complicated.

Coming up to fifty, they're still best friends. Justine has been married to Iseult’s brother for twenty-five years and lives in her childhood home. Iseult has spent her adult life abroad, her marriage clearly unhappy for reasons she won't discuss.

When Justine’s daughter suddenly announces her engagement, Justine is thrown into planning a big family wedding. Afraid that her daughter is making a mistake, she finds herself questioning the choices she and Iseult made. It's a crisis of confidence that extends to the institution of matrimony itself.

From the Women’s Prize longlisted author of Nothing But Blue Sky and The Home Scar, Other People’s Lives is a captivating story about the decisions we make in a heartbeat, and their lifelong consequences.

© Kathleen MacMahon 2026 (P) Penguin Audio 2026