After a series of deaths at the hospital some of the staff become very superstitious. Izzie worries about Denny and gets confronted by Alex. A patient with OCD drives Cristina crazy. Derek and Addison discuss their relationships with Meredith. Richa... (more)rd treats a friend from 17 years ago who reveals a secret about a dark time in his past that involves Ellis. George gets an earful about the women he's not talking to. Burke and Cristina argue about kicking George out.

Alex Downs, Anjul Nigam, Annie Morgan, Brooke Blanchard, Chad Fisk, Domingo Vara, Kate Anthony, Keeshan Giles, Kerry Carney, Linda Klein, Mary Kay Place, Michelle Watkins, Omar Metwally, Pamela Zane, Rob Narita, Shenita Moore, Toia Thompson, Wayne Lopez