The Light Between Oceans

Tom and Isabel is a young family couple who live on a tiny island. Seems, they will forever live in a happiness, but terrible grief happens: they have to bury their long-awaited child. Isabel loses the any meaning of her life, and Tom hardly withstands the suffering of his honey. One day they receive Light Between Oceans - the light of hope. Tom discovers the dead man and survived newborn baby girl in the boat that has been nailed to the shore.
Couple decides to adopt the child. They raise girl as their own and don't even think about woman crying somewhere of lost husband and baby.
A lighthouse keeper and his wife living off the coast of Western Australia raise a baby they rescue from an adrift rowboat.