Four years after serial killer Rudy Cutter was sent away for life, San Francisco homicide inspector Frost Easton uncovers a terrible lie: his closest friend planted false evidence to put Cutter behind bars. When he's forced to reveal the truth, his sister's killer is back on the streets. Desperate to take Cutter down again, the detective finds a new ally in Eden Shay. She wrote a book about Cutter and knows more about him than anyone. And she's terrified....