When historian Rose McHugh is left a mysterious bequest after the death of the reclusive heiress of Thornwood Park, she’s excited to visit the estate.

But when Rose realises she may have found evidence of women going missing, she delves deeper. During World War II, the nearby Robertson Hotel housed trainees of the Women’s Auxiliary Australian Air Force, who often attended lavish parties thrown by Thornwood’s wealthy owners.

Unearthing a decades-old mystery is a challenge, particularly when it may lead to the unmasking of a serial killer. And it appears that someone in the misty Southern Highlands will do anything to keep the killer’s identity hidden…