As Kate assists her colleague Ivor Tweedy with a project at the Netherfield Sanatorium, which is being converted into luxury townhouses. But when retired criminal inspector Will Parker is found dead, Kate learns that the halls of the sanatorium housed much more than priceless art. Kate is surprised to learn that Will had been the first boyfriend of her friend Vivian Bunn.When Kate makes a shocking connection between a sixty-year-old murder and the long-buried secrets of the sanatorium, she suddenly understands that time is running out for Vivian - and anyone connected to her.