The Younger Wife by Sally Hepworth

In this gripping domestic thriller, the lives of two sisters, Tully and Rachel, are upended when their father, Stephen, announces his engagement to a much younger woman, Heather. As the wedding approaches, the sisters grapple with their own personal struggles and suspicions about Heather's intentions, while uncovering unsettling secrets about their family's past. Tensions rise as the narrative unfolds through multiple perspectives, revealing the complexities of love, trust, and betrayal, ultimately leading to a shocking climax that challenges the characters' perceptions of truth and loyalty.