Stella O'Neill is just your average millennial, working at a public library and worrying about making rent. No one would suspect she's been living under an assumed name or that she was raised in a Vermont commune of "diviners" where, as a 10-year-old, she witnessed her mother’s brutal murder --- a crime that has gone unsolved for years. But her quiet, anonymous existence is upended when a true-crime obsessive posts her current name and location on the internet. Now, Stella has to get out of Boston before her mother’s killer can find her and finish the job he started all those years ago. Fed up with living in fear, she heads to the off-the-grid retreat of her childhood to confront her mother’s unhinged guru who controlled their lives for so long.

Holly and Robert Barron are attractive young real-estate investors and contestants in a competition run by To the Manor Build, the nation’s most popular home renovation app. But just hours after their picture-perfect wedding, Holly and Robert go missing, leaving behind a bloody trail. Suspicion falls quickly on Erika Turnbull, the Barrons’ assistant, who is secretly in love with Robert. Did Erika let her misguided passion turn her into a murderer? So claim the townsfolk of Snowden, Vermont, who still haven’t forgiven her for a tragic accident back in high school. But Erika’s mother is not about to let small-town gossip and a cop with an axe to grind destroy her daughter --- again. With time running out and their own lives at risk, the mother-daughter duo set out to find what really happened to the Barrons.

Jane Ellison is a “super recognizer” who can identify strangers by the slightest facial details. When she spies human rights activist and heiress Bella Valencia in a Boston airport, Jane is convinced she has found the person responsible for her sister Kit’s disappearance and presumed death 11 years earlier. But her attempt to detain the suspect ends with Jane herself fired and humiliated. As Bella prepares to marry Will Pease, scion of the ruthless Pease family, she grows increasingly anxious that her dire secret will be revealed. Jane is ready to risk everything for the chance to publicly expose Bella’s crimes at her upcoming celebrity wedding. But the more she digs into what happened that night, the more she questions her own assumptions.

When Lynne passes away, she leaves behind one simple request: that her old friends sort through her belongings. Reluctantly, three women reunite to rummage through her closets. Buried deep within Lynne's lingerie drawer is an envelope addressed to them. Inside, they find a letter that reveals a shocking secret, and a final wish that will send them on a life-changing journey.