Willow Grey has survived things most people can't imagine. An addicted mother. A violent home. A psychiatric facility where she met her best friend — a girl in black who appears when Willow is afraid, and vanishes when the medication kicks in.
Placed with a new foster family in a quiet suburb, Willow finally lets herself want something: friends, school, a little sister who feels like her own. But the Wilson house has its own darkness. And when Hazel comes back — stronger, older, and angrier — she starts making choices Willow never asked for.
The question at the heart of Bestie isn't whether Hazel is real. It's whether Willow can afford to lose her.