A baby in a basket is left on the steps of an isolated monastery on a Scottish island. The nuns take it in, planning to care for it until a storm passes. Soon though, strange and unexplained events begin to happen at the convent.
As a child, Evie lost herself in the myths and legends of the sea while her family collapsed around her. A childhood tragedy and an estrangement from her loved ones means Evie must find her way in the world on her own....now the demons of her past have come to reclaim her.