Captain Charles Maddox returns secretly to London from an exile in disgrace only to be arrested, imprisoned and threatened with the death penalty. He is rescued by a shadowy government agency called the Map Room who give him a choice: return to prison or become an agent, codenamed Sterling, and help them uncover a government conspiracy connected to the Ripper murders.

Summer, Little Creek, 1879. For most of her life, Judy Begg has been a loyal servant at Creek Manor and to Jack Fox, its future lord. But just as their childhood friendship blossoms into a secret engagement he abandons her to join his brother overseas. And with Creek Manor up for sale, Judy and her family lose everything. Devastated, Judy is nonetheless determined to make the best of her life. Resolving to forget about Jack, she battles to keep her...

Wales, 1883. Young Ruth Owen, a talented musician with a scholarship to a prestigious music school, has a sparkling career ahead of her. But after a run-in with her mysterious tutor she flees to London, leaving everything and everyone behind. London, 1897. Fourteen years later, Ruth, now married with two children, finds herself struggling for money and a place to live. Left with no other option, they decide to return to Wales and live on a canal boat....