As revolution threatens in steampunk Victorian London, the poor fight for their very survival while the government turns a deaf ear. Molly Turner knows her invention, a tinkering like no other, could shift the odds in their favor and has few qualms stealing the part she needs to complete it. Caught red-handed, matters take an unexpected turn when Malcolm Wallace, the famous tinkerer she’s just burgled, is impressed with her design and offers her employment.
Working by his side, Molly falls for Malcolm, but when the Secret Service insists Molly spy on Malcolm, she refuses and suffers the consequences. The couple soon marry but tragedy strikes six months into their marriage when Malcolm is caught in an explosion, his body burned beyond recognition.
Distraught, Molly only survives his death due to the care and attention of Malcolm’s dear friend, Ian MacKay. With time, their friendship turns to love and they marry. Happy once more and pregnant with Ian’s child, the last person Molly expects to find on her doorstep is Malcolm, still very much alive after escaping from the Secret Service. With revolution under foot, Molly must now choose between one man who is her heart and the other who is her soul.