Michigan, 1985. The drowning of a teenage girl causes ripples in the small town of Kettle Lake, though for most the waters settle quickly. For sixteen year old Joanne Kennedy, however, the tragedy dredges up untold secrets and causes her mother to drift farther from reality and her family. When troubled newcomer Lucinda arrives in town, she offers Joanne a chance of real friendship, and together the teenagers push against the boundaries of family, self-image, and their sexuality during the tension of a long, stifling summer. But the undercurrents of past harms continuously threaten to drag Joanne and those around her under.