"Gripping." —Alex Michaelides, New York Times bestselling author  "Blisteringly brilliant." —Sarah Pinborough, New York Times bestselling authorThree friends. Two bodies. One party that changes everything.When ambitious barrister Sylvie Munro attends a glittering New Year's Eve party in Edinburgh, she's expecting drama, but not death. Hosted by her childhood friend Tess, who has been confronting a terminal diagnosis, the celebration serves as Tess's backdrop for confessing a secret they've buried for decades.But as the clock ticks toward midnight, two guests fall to their deaths in a grisly scene that shatters the night. Sylvie is forced to reckon with the truth: someone at the party knows what she and Tess did—and wants revenge.Told through shifting timelines and unreliable memories, as the narrative unfolds, readers are pulled into a web of suspicion, ambition, and moral ambiguity where no one is quite who they seem.From the international bestselling author Harriet Tyce, It Ends at M