Olwen, Nell, Maeve and Rhona were plunged prematurely into adulthood when their parents died in a tragic twist of fate. Now in their thirties, the sisters barely speak, each too busy carving out impressive careers. But when Olwen – reluctant matriarch, lodestar and, of late, zealous consumer of gin – abruptly disappears, her sisters are cast back together to find her, whether she likes it or not.

When they eventually track Olwen down, she is holed up in a remote bungalow in rural Ireland, with little electricity and a patchy connection to the outside world. Together for the first time in years, the sisters vie to confront old wounds and diagnose new ills – most urgently, Olwen's.