At the soon-to-be-demolished Netherfield Sanatorium, Kate Hamilton and Ivor Tweedy must authenticate a 15th-century painting. But when retired criminal inspector Will Parker is found dead, Kate finds that the sanatorium housed much more than priceless art. In this fourth outing (after The Art of Betrayal), Kate learns that Will had been the first boyfriend of her friend Vivian, who hadn't seen him in 58 years. Now Vivian is in danger, because someone is targeting every member of her childhood gang.