Following a romantic shipboard marriage, Joanna Morcant has everything her heart could desire: a dashing new husband and an adorable baby son. But an unforeseen tragedy leaves Joanna destitute and with no choice but to return to her childhood home, the Isle of Portland off the Dorset coast, a place which holds disturbing memories from Joanna's troubled past. Just as Joanna is starting to make a new life for herself and her young son, Toby, the past rises up to haunt her once again. Toby's grandfather, the dissolute Lord Durrington, has vowed to take the child and make him his heir -- whether Joanna agrees or not. And he's not the only sinister figure to emerge, determined to cause trouble. But in Joanna's darkest hour, a knight in shining armour will ride to her rescue -- and that knight is someone she least expects.