For the prostitutes of Leather Lane, nurse Hester Monk’s clinic is a lifeline, providing medicine, food and a modicum of peace. However, the mysterious death of Railway magnate Nolan Baltimore in a sleazy neighbourhood brothel overshadows all else. Meanwhile Monk acquires a new client, who asks him to ascertain whether her fiancee, an executive in Baltimore’s railway firm, has become enmeshed in fraudulent practices that could ruin him. As Monk views the last railway tracks of a new line being laid, his past comes back to haunt him and warn him of a new tragedy about to unfold….