Big Brother 8: Week 7: Dustin Out, Dani HoH

A person dressed as a Mad Hatter sneaks into the house and wanders around while the contestants try to figure out what's going on. Then more strange visitors arrive. Dick forms a family alliance that evicts Dustin by a vote of 4-2. For the Head of Household competition, the remaining houseguests are asked questions about what the strange visitors did while they were in the house. Daniele wins the competition and becomes the new Head of Household.