Four years on from discovering their true heritage, Sally and Luke have overcome their animosity to forge a trusting brother- sister relationship. So when Luke returns home from his post as a detective in the Hong Kong police force, he asks Sally for help to prove the innocence of his friend Irish, locked up in prison for the murder of his wife. Luke believes Irish was set up and wants Sally's help to prove it.

But Sally already has her hands full. As well as tending her flourishing business empire, she must also pick up the pieces when her family – from her feckless sister Josie to her self-centred daughter Margo – runs into trouble. Moreover, she must put her own dreams on hold because the man she loves is not free to be with her.

Facing betrayal and humiliation at the hands of her so-called loved ones, can Sally bring herself to forgive those who have wronged her? How can she help Luke? And what can she do when sorry is not enough?