Badd Blood: In Your House was the 18th In Your House professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE). It was held on October 5, 1997, at the Kiel Center in St. Louis, Missouri. The event was notable for the first Hell in a Cell match, which pitted The Undertaker against Shawn Michaels and saw the debut of Undertaker's storyline brother Kane, who interfered in that match, which allowed Michaels to win and become the number one contender for the WWF Championship against reigning champion Bret Hart at Survivor Series. The show would also mark the last time Vince McMahon was part of the commentating team for a pay-per-view. It would also be the first event in the Bad Blood PPV chronology.