For years 41-year-old Kate Cypher has avoided her childhood home, suppressing memories of her friend Del--dubbed Potato Girl by cruel classmates--whose murder 30 years prior has never been solved. Kate is certain that if she had done just two things differently on that fateful day, Del would still be alive. Now, Kate has returned to care for her Alzheimer's-afflicted mother, whose decent is accelerating. But on the night Kate arrives, a murder eerily similar to Del's occurs, tumbling Kate into a tangle of lies, rumors, and half-truths.