The crying persisted. The door of the ligthhouse clanged in the distance, and Tom's tall frame appeared on the gallery as he scanned the island with the binoculars. 'Izzy!' he yelled, 'a boat!' He vanished and re-emerged at ground level. 'It's a boat all right,' Tom declared. 'And - oh cripes! There's a bloke, but' The figure was motionless.

Released from the horrors of the First World War, Tom is now a lighthouse keeper, cocooned on a remote island with his young wife Izzy, who is content with everything but her failure to have a child. One morning, a boat washes ashore carrying a dead man - and a crying baby. Safe from the real world, Tom and Izzy break the rules and follow their hearts. What happens next will break yours.