The stakes are higher than ever as the world's most celebrated housewives are united by their involvement in the slaying of Gaby's loathsome stepfather. The desperation mounts when Bree receives an anonymous "I know what you did" message worded identically to Mary Alice's fateful note. Meanwhile, Renee tries to spark up some romance with hot new Aussie neighbour Ben, Lynette and Tom navigate the rough waters of their separation and Susan jumps headfirst into a "relationship" with a volatile art professor who is determined to draw out her wilder side. Ultimately, the suspense builds to a fever pitch when Bree is arrested and tried for murder! Mysteries will be solved, and loyalties are tested as the excitement soars to all-time heights.