Is an affair the end of the road? Can a monogamous relationship transition into an open structure after a transgression is uncovered? What kind of a relationship can you expect if "the other" person is now your metamour? In this two-part episode, Effy and Jackie tell two stories of infidelity. One from the point of view of the cheater and the other cheated on. Both as painful as insightful, these stories attempt to unpack the multifaceted dynamics of affairs and explore what's available in the aftermath.