My life has never been better. I have a beautiful little girl, and I am engaged to be married to the man I’ve had a crush on since I can remember. So when Nick, my handsome fiancé, announces that his sister Carla is finally coming home, it’s truly the icing on the cake. That was twelve years ago, and no one has seen her since. Everyone is ecstatic about Carla’s return. But as I spend more time with her, I can't shake the feeling that something isn't right. Her behavior is a little off, her childhood memories don't align with mine, and she's oddly evasive about her lost years.

For the lucky among us, life is what you make of it, but for Dixie Wheeler, the theme music for her story was chosen by another long ago, on the day her father butchered her mother and brothers and then slashed a knife across his own throat. Only one-year-old Dixie was left alive, infamously known as Baby Blue for the song left playing in the aftermath of the slaughter. Twenty-five years later, Dixie is still desperate for a connection to the family she can’t remember, so when her childhood home goes up for sale, Dixie sets aside all reason and moves in.

Twenty-five years ago, the body of 16-year-old Eve Knox was found in the caves near her home in small-town Grotto, Iowa - discovered by her best friend, Maggie, and her sister, Nola. There were a handful of suspects, including her boyfriend, Nick, but without sufficient evidence the case ultimately went cold.

Kit Darling is a maid with a snooping problem. She’s the “invisible girl,” compelled to poke into her wealthy clients’ closely guarded lives. It’s a harmless hobby until Kit sees something she can’t unsee in the home of her brand-new clients: a secret so dark it could destroy the privileged couple expecting their first child. This makes Kit dangerous to the couple. In turn, it makes the couple—who might kill to keep their secret—dangerous to Kit.

Frankie Elkin is an average middle-aged woman, a recovering alcoholic with more regrets than belongings. But she spends her life doing what no one else will - searching for missing people the world has stopped looking for. When the police have given up, when the public no longer remembers, when the media has never paid attention, Frankie starts looking. A new case brings her to Mattapan, a Boston neighborhood with a rough reputation. She is searching for Angelique Badeau, a Haitian teenager who vanished from her high school months earlier.