THE NO. 1 BESTSELLER

Shortlisted for Popular Fiction Book of The Year, Irish Book Awards 2025

'Classic Moriarty territory: emotional, relatable and rooted in the messiness of real family life’ RTÉ Guide

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Family life is enough of a juggle without ... The In-Laws

Amanda. Katie. Melanie.

Three wildly different women with one big problem – their impossible mother-in-law, Nancy.

When an unexpected crisis hits the family business, the sisters-in-law find themselves navigating stormy waters. Amanda is back in town and ready to reclaim her spot at the top. Katie, the feisty outsider, knows she'll never earn Nancy’s approval – and has stopped caring. Melanie, ambitious and savvy, is more than capable of running the business, if only Nancy would loosen her iron grip.

Forced to confront messy truths about marriage, motherhood, succession and family loyalty, the three women soon realize their greatest strength might just be each other.

The In-Laws is a sharp, funny, and relatable novel about surviving the family you didn’t choose.

It's classic Moriarty territory: emotional, relatable and rooted in the messiness of real family life * RTÉ Guide *
There is no living author who writes about the intricacies of family life quite like Sinéad -- Claudia Carroll
Moriarty captures the intricacies of contemporary family life with flawed, relatable characters in a heartfelt and humorous tale * Sunday Independent *

Sinéad Moriarty's novels have sold over 900,000 copies in Ireland and the UK. Since the launch of the Irish Book Awards each has been shortlisted in the popular fiction category, with The Way We Were winning in 2015. She won a second IBA for her first YA novel, The New Girl, in 2021. Sinéad lives in her native Dublin with her husband and their three children.