Gen is on the verge of a divorce from her cheating husband. When her sister, Meg, has a convention to attend in the Big Apple, she invites Gen along to celebrate her newly found freedom. But the perfect sisters' getaway quickly goes awry when a tipsy Gen defiantly throws her wedding ring off the hotel room's balcony. Then, wanting some fresh air, she decides to take a late-evening walk alone and vanishes without a trace. The investigation that follows uncovers secrets and betrayals between sisters and spouses that will twist the truth in on itself until nothing is clear. What really happened to Gen and who, besides Meg, was the last to see her?