Kimberly, a teenager suffering from agoraphobia, has not left the house since her mother's murder, which remains unsolved. While under the care of her doting father on the eve of Thanksgiving, Kimberly begins to suspect that she is in danger, and that it's always the ones you love that hurt you the most.

In the era of "self-care" mania, a group of millennial friends gather for a girls' night reunion on New Year's Eve to reconnect and reminiscence. But as they begin to rehash old memories and revisit an old party game of "Never, Have I Ever," gripes and secrets they've been harboring manifest in nefarious and surprising ways.