In Brisbane, a string of high-profile murders is sending shockwaves through the underworld. Detective Riley Kade is determined to catch the killer, but her past—and its connection to the crime scene—threatens to derail her mission. As she navigates a complex web of corruption and deceit, Riley must confront her own demons while unravelling the truth behind the black rain murders.

When a brilliant detective is forced to team up with her estranged sister, a master thief, to unravel a decades-old conspiracy involving their family's dark past, they must confront their own demons and forge an unlikely alliance to survive the deadly game of cat and mouse.