Olive Martin is sentenced to life after confessing to murdering her mother and sister. No one doubts her guilt except author Rosalind Leigh.
Olive's refusal to talk forces Rosalind to continue her own investigation, drawn into a web of lies that leaves her unsure who to trust.
Rosalind's obsessive hunt for the truth about Olive's family secrets becomes more and more dangerous.
Rosalind and Hal unite to prove Olive's innocence, but time is running out and if she didn't do it, who did?