Jess Kendall wants to make a good impression on her new boss at Canada's Dominion Archives and thinks she's hit the jackpot when she finds some mysterious letters from the First World War. Setting out to unravel their story, she starts researching in the Archive's art vault. There, however, she stumbles across the body of a colleague. When Jess makes the connection between the letters, the murder, and a priceless Rembrandt, she realizes just how high the stakes are.