When Evie (Eleanor Tomlinson) and Pete (Alfred Enoch) move into an upscale neighbourhood, they find themselves in a world of curtain twitching and status anxiety. But soon find friendship in the shape of the couple next door, alpha traffic cop Danny (Sam Heughan) and his wife, glamorous yoga instructor Becka (Jessica De Gouw). As time goes on, these two couples get increasingly close to each other and one fateful night, become sexually entangled in a way that will change their lives forever…