Emma Averell's life is a carefully constructed edifice of success, balancing a high-powered legal career, a loving family, and the shadows of a traumatic childhood she's fought hard to overcome. But as she approaches her fortieth birthday—the same age when her mother descended into madness—Emma's nights become battlegrounds against crippling insomnia, a harrowing prelude that threatens to unravel everything. Her mother's legacy whispers torment from the past, suggesting that insanity might be a familial curse Emma can't escape. With her days blurring and her grip on reality loosening, Emma is haunted by the fear that she could become the very monster she's spent her life running from. "Insomnia" by Sarah Pinborough is a masterful psychological thriller that weaves a tale of deep-seated fears, familial legacy, and the desperate struggle for sanity. Pinborough intricately plots Emma's descent into a nightmarish uncertainty, where the boundaries between past and present blur, and the specter of hereditary madness looms large. As Emma's life spirals out of control, readers are drawn into a heart-pounding journey to uncover the truth behind her insomnia and the dark secrets that lie buried in her family's history. With every twist and turn, "Insomnia" challenges the very notion of reality, leaving readers questioning what it truly means to inherit our parents' pasts.