After a pilot dies in the crash of an airliner, his wife discovers he was a bigamist. A face-to-face follows between the legal wife, Kathryn of Boston by whom he had one child, and the other woman, Muire, who lives in England with their two children. By the author of The Weight of Water.

The Dunnes have set off on a ten day boat trip, a trip that hopefully will bring them closer together, despite the fact that the father, Stuart, is staying behind on land. But only an hour into the trip they're already falling apart. The teenage daughter plans to drown herself, and the teenage boy is high on drugs. Ten-year-old Ernie is near catatonic. But their mother Anne, with the help of her brother-in-law Jeff, is insistent on pulling everyone...