Spanning the years 1900 to 1977, The Covenant of Water is set in Kerala, on South India’s Malabar Coast, and follows three generations of a family that suffers a peculiar affliction: in every generation, at least one person dies by drowning—and in Kerala, water is everywhere. At the turn of the century, a twelve-year-old girl from Kerala’s long-existing Christian community, grieving the death of her father, is sent by boat to her wedding, where she will meet her forty-year-old husband for the first time.

Cassie Prince lives in a beautiful beach suburb with her successful husband Jon and their children Ellie and Danny. Life is perfect, right? Except now she's reached her mid-forties, she can't help wondering what happened to the fun-loving, sexy and accomplished woman she used to be. This isn't what was promised. She's panicking about ageing, bored in her marriage, exhausted by her demanding kids, and increasingly torn by news of her sick mother back in England. So Cassie does what she's always done - buries her feelings and ignores her problems (and does some more online shopping).

Yeongju did everything she was supposed to, go to university, marry a decent man, get a respectable job. Then it all fell apart. Burned out, Yeongju abandons her old life, quits her high-flying career, divorces her husband, and follows her dream. She opens a bookshop. In a quaint neighbourhood in Seoul, surrounded by books, Yeongju and her customers take refuge. From the lonely barista to the unhappily married housewife, and the writer who sees something special in Yeongju - they all have disappointments in their past.

It was a mistake to trust him. Shivering and bruised, a teen wakes up on the side of a dirt road with no memory of how she got there—or who she is. The police don’t know where she came from until a frantic man arrives at the station. He’s been searching for her for hours. He has her school ID, her birth certificate, and even family photos.

Sam Hill always saw the world through different eyes. Born with red pupils, he was called “Devil Boy” or Sam “Hell” by his classmates; “God’s will” is what his mother called his ocular albinism. Her words were of little comfort, but Sam persevered. Sam believed it was God who sent Ernie Cantwell, the only African American kid in his class, to be the friend he so desperately needed. And that it was God’s idea for Mickie Kennedy to storm into Our Lady of Mercy like a tornado, uprooting every rule Sam had been taught about boys and girls. Forty years later, Sam, a small-town eye doctor, is no longer certain anything was by design.