Meg lives alone- a little place in the bush outside town. A perfect place to hide. That's one of the reasons she offers to shelter Nerine, who's escaping a violent ex. The other is that Meg knows what it's like to live with an abusive partner.
Nerine is jumpy and her two little girls are frightened. It tells Meg all she needs to know about where they've come from, and she's not all that surprised when Nerine asks her to get hold of a gun. But she knows it's unnecessary. They're safe now.
Then she starts to wonder about some little things. A disturbed flyscreen. A tune playing on her windchimes. Has Nerine's ex tracked them down? Has Meg's husband turned up to torment her some more?
By the time she finds out, it'll be too late to do anything but run for her life.