Ron and Sandy Blackman's brutalised bodies are found in the hallway of their isolated rural home. They've been stabbed multiple times; Ron's hands are tied tightly behind his back; Sandy has several fingernails ripped out. The safe has been forced open.

This is the second house of horrors that Maddie and her team have been called out to in a matter of days.

Four days earlier, single mother Maria was also stabbed to death in her own home - with the same murder weapon.

Maddie's partner Vince was first on the scene. He finds Maria's traumatised daughter trapped under the floorboards.

Jade saw everything - but can remember nothing.

Maddie is convinced these aren't robberies gone wrong. These two families were specifically targeted, tortured for information. But what secrets was the killer so desperate to find out?

The key to the mystery lies with eleven-year-old Jade. Maddie and her team are in a race against time to find out the truth before Jade's memories come back . . . and the killer returns to silence her forever.