A friendship is put to the test when a young woman disappears from a quiet community in a dark and twisty novel of suspense by the bestselling author of Open House and The Vacation Rental.

Sloane Thompson has a daughter named Daisy, attends school activities with other parents, and even has an amicable relationship with her ex-husband. But after ten years in bucolic Sycamore Glen, Sloane has yet to find someone to call a true friend. Until Harper and Ben Wilson move in next door.

Harper is open, charismatic, and restless. She and Sloane quickly become confidantes and fall into a deep and intoxicating friendship. Then one afternoon, Daisy's dependable babysitter, Margaret, fails to show. When texts from Margaret's mother and boyfriend go unanswered, the inexplicable disappearance becomes a cause for alarm.

As anxious hours turn into days, suspicion grows. And tension tightens. As if something is about to snap. When it does, long-held secrets are revealed, and not everyone in Sycamore Glen is who they seem to be.