Two girls are desperate to catch a murderer! Oli Parish is numb after the death of her sister Eloise. And the killer is still on the loose. But nothing gets in the way of her visiting the site where her sister's body was discovered. But on one of her visits, Oli hears a voice calling for help and then she sees a hand clawing its way through the dirt. But this is no ghost-it's a young girl named Iris. She has no memory of what happened to her and how she ended up in the same shallow grave as Eloise. But Oli knows that Iris must in some way be connected to her sister's murder. Together, the two girls team up to unravel the mystery of who is behind the crimes.