Rose is a relentless documentary filmmaker and recently divorced mother, brilliant at uncovering others' truths but struggling to resolve her own. When Rose begins a project on a mysterious 20th-century cult known as the Church of Ascension, she finds unexpected refuge in its teachings – until she discovers something far more insidious beneath.

Four dentists, three men and a woman, meet at a yearly dental convention in Mexico’s Mayan Riviera. While two of them are old friends and rivals, the other two have only gotten to know each other at past conventions.