January 1978. Tallahassee. When sorority president Pamela Schumacher is startled awake at 3 a.m. by a strange sound, she's shocked to encounter a scene of implausible violence - two of her friends dead and two others, maimed. Thrust into a terrifying mystery, Pamela becomes entangled in a crime that captivates public interest for more than four decades . . .

On the other side of the country, Tina Cannon has found peace in Seattle after years of hardship. When Ruth, her best friend, goes missing from Lake Sammamish State Park in broad daylight, surrounded by thousands of beachgoers on a beautiful summer day, Tina devotes herself to finding out what happened to her.

When Tina hears about the tragedy in Tallahassee, she suspects the same man the papers refer to is responsible. Determined to make him answer for what he did to Ruth, she travels to Florida on a collision course with Pamela - and one last impending tragedy.