"Black Widower" (originally titled "The Return of Sideshow Bob") is the twenty-first episode of the third season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on April 9, 1992. The episode was written by Jon Vitti and directed by David Silverman. Kelsey Grammer guest starred as Sideshow Bob for the second time. In the episode, Sideshow Bob — Bart's new archenemy — returns, wanting to kill Bart as revenge for sending him to jail. He instead marries Bart's aunt Selma, but when Bart later realizes that Bob is planning to kill Selma, he prevents the attempted murder and Bob is sent back to prison. "Black Widower" finished 39th in Nielsen ratings for the week that it originally aired. Reviewers generally enjoyed the episode, and gave Grammer's portrayal of Sideshow Bob particular praise. Plot The Simpsons have dinner with Selma and her new boyfriend Sideshow Bob. During dinner, Bob reveals that while he was in prison, he began building up hatred and the desire to kill Bart for exposing his crime of framing Krusty the Clown and started plotting revenge. However, after receiving Selma's response to his "Prison Pen Pal" ad, he fell in love with her and was inspired to become a model prisoner, earning an early release. Bob proposes to Selma and she accepts. He makes an appearance at a Krusty the Clown telethon and they reconcile. Lisa encourages Bart to forgive Bob, but Bart refuses to believe he is reformed. When Selma discovers that Bob detests MacGyver, the marriage is nearly called off until Bob takes Homer's suggestion to let Selma watch it alone while he takes a walk. Selma reveals that she has no sense of smell or taste after a mishap with a bottle rocket and has cut back on cigarettes, smoking only after meals and episodes of MacGyver. Selma sends the Simpsons a tape of their honeymoon which captures Bob's tirade over the lack of a gas fireplace in their hotel room. While watching MacGyver, Bart realizes that Selma has one hour to live and the Simpsons rush to the hotel room. When Selma retires alone to watch MacGyver, her hotel room explodes. Bob returns, expecting Selma dead, but she is unscathed and the Simpsons and the police apprehend Bob. Bart explains how he exposed Bob's scheme: Bob opened the gas valve in the