Bone dust white

"Someone is knocking at the door to Grace Adams' house, and he won't stop. Grace thinks she knows who it is, but when she goes to her second floor window for a look she sees a woman she doesn't recognize. The woman isn't alone for long before a man emerges from the dark of the surrounding woods, stabs her, and leaves her for dead. Trying to help, Grace goes to the woman and is shocked to find that it's her mother Leanne--a woman who abandoned her 11 years before. There's nothing she can do, and Leanne is already past the point where she can tell Grace what happened all those years ago or why…