There was a man. He had a knife. He attacked us down by the river.

It was just a harmless little lie.

Anna, Emma and Mariah concoct a story about why they're late getting home one night—a story that will replace their parents' anger with concern. They just have to stand by it. No matter what. Suddenly the police are involved, and the town demands that someone be punished. And then there is the man who is arrested and accused of a crime that never happened.