Answering the invitation sent by his ex-wife, Eden (Tammy Blanchard), and her new husband, David (Michiel Huisman), boyfriend-girlfriend, Will (Logan Marshall-Green) and Kira (Emayatzy Corinealdi) meet the couple and their old friends.
But Will starts to grow suspicious when the couple, and two unknown guests, start to share their new found ideas of expelling pain with the group.
Haunted by the memories of his dead son with Eden, Will begins to confront Eden for dismissing this tragic happening. The event quickly spiraled out of control. It even got worse after Will found out that the couple wants to poison them as part of their idea of peace through death.