How to Plan an Orgy in a Small Town is all about a set of friends who live at the scenic town of Beaver's Ridge--the epitome of wholesomeness and powerful family values. Their life is interrupted by the homecoming of Cassie Cranston (Jewel Staite), whom they slut-shamed into leaving town when she was a teenager. Now a big-city sexual writer, Cassie locates an opportunity to get revenge whenever they ask her if she will help them plan a orgy, and returns home to manage an unwelcome reception with her former friends.