In a haunting novel of psychological suspense, a summer getaway gone wrong rips apart a group of lifelong friends, thrusting their story into the true crime spotlight—and potentially their secrets, too.

For five friends vacationing on Block Island, it was a summer to remember. How could they forget it when only four made it back to the mainland?

Now, half a decade after Zoe Gilbert’s unsolved disappearance, Callie Sutter invites estranged friends Meg, Tess, and Lindsey—the last to see Zoe on that fateful trip—to reunite on the anniversary of the mystery that tore them apart. Back on Block Island, Callie reasons, they can come together again, memorialize Zoe, allay old resentments and recriminations, and put the past to rest. But it won’t be so easy. Patricia Adele, a true crime podcaster who once made a name for herself by casting suspicion on Zoe’s surviving friends all those years ago, is most eager for the reunion. She’s resurfaced with a book proposal claiming to expose them all as cold-blooded liars and conspirators in a crime once and for all.

Driven by self-preservation, the women must reckon with their long-held secrets and shared history if they’re to find out what really happened to Zoe on that hot August day. But will the truth set them free or condemn them all? No one is prepared to find out.