Rushing back to her seat, Makayla Rossi is relieved that all’s still quiet. But when she checks on her sleeping baby, relief morphs into fear. The bassinet is empty. Liam is gone. It was a long flight from Anchorage to New York, and with every flight attendant busy, Makayla reluctantly ran to the restroom, asking a seat neighbor to watch her son. She stepped away for just a few minutes. Yet at thirty thousand feet, he still vanished.

To Brooke, image is everything. She works hard to maintain perfect grades, perfect looks, a perfect life—especially after "the incident" that threatened it all. Getting into her dream university puts her that much closer to a fresh start. How can she say no to celebrating with all her classmates? Hanging out with her crush by the bonfire is the perfect end to the night. Except it isn't the end. An old truck starts aggressively tailing Brooke and her best friend on the isolated road toward home. Someone thinks they know the truth about "the incident."

To eight-year-old Bela, her family is her world. There’s Mommy, Daddo, and Grandma Ruth. But there is also Other Mommy, a malevolent entity who asks her every day: “Can I go inside your heart?” When horrifying incidents around the house signal that Other Mommy is growing tired of asking Bela the question over and over, Bela understands that unless she says yes, her family will soon pay. Other Mommy is getting restless, stronger, bolder. Only the bonds of family can keep Bela safe, but other incidents show cracks in her parents’ marriage. The safety Bela relies on is about to unravel.

Olive is a Los Angeles bartender who has been unlucky in love. She hopes that will change when one of the best-looking men she's ever seen walks into her bar. But he’s not what he seems. He and his childhood friend have set a depraved plan in motion. Becca is a grifter and a con-artist looking for her one big score. She’s found out that Olive’s boss has hundreds of thousands of dollars in cash at his house in the Pacific Palisades. Becca will do anything to make it hers.

Paul’s just here to help, or so he claims—sent by a charity for vulnerable people to do odd jobs for elderly widow Gwen. But for Gwen’s daughter Connie, there’s just something about Paul that rings alarm bells from day one. He’s a little too kind, a little too involved…Worse still, Gwen seems to have fallen under his spell.