In a remote Cornish cove, on one of the last days of summer, Robyn Swinton is drowning. She is saved - just - by local boy Jago Winters, and it is a moment that will change both of them forever.

Over the next seven years, Robyn and Jago's paths lead them in different directions, to city streets and foreign shores. Will the bond forged that day Jago dragged Robyn in from the sea be strong enough to bring them back to one another, or has life already pulled them too far apart?