Storm Castle - home of the Trevarwiths - on the wild Cornish coast. A bride and bridegroom driving up to the doors...a white-faced child peering from a turret window... the first dread meeting between the bride and her red-haired vixen of a step-mother...

In later years, after the death of Celia Trevarwith's father, during the Second World War, Paul Manton comes to the district. A Free-French fisherman; he falls madly in love with Celia. She then embarks on a passionate struggle for her love and happiness with Paul, always up against her step-mother's opposition.