On a 1937 December morning, as sunrise light streams through the high, arched windows of Grand Central Terminal, Joe Reynolds spots an out-of-place young woman near the station’s famous gold clock. After coming to the woman’s aid, Joe learns three things: Her name is Nora Lansing, she’s a wealthy Manhattan socialite, and she absolutely captivates him.

This serendipitous meeting begins an unlikely love affair that defies both time and tragedy. As Joe and Nora find each other again and again, they slowly unravel the mystery surrounding Nora’s strange circumstances even as the threads of their lives wind tighter together.