When House discovers that the experimental drug he's been using causes fatal tumors, he decides to attempt to excise them himself. However, he can't complete the surgery and ends up needing Cuddy's help. Meanwhile, Thirteen's friend from prison (Amy Landecker), a relapsed drug user, arrives at her apartment needing medical care after being stabbed. With her friend unwilling to go to the hospital, Thirteen enlists Chase's assistance when the friend loses sensation and movement in her arm. Also, Taub receives some unexpected news that could change his life.
Elenco: Hugh Laurie , Jesse Spencer , Omar Epps , Robert Sean Leonard , Peter Jacobson , Olivia Wilde , Odette Annable , Charlyne Yi , Anne Dudek , Kal Penn , Jennifer Crystal Foley , Bobbin Bergstrom , Sela Ward , Meaghan Martin , Michelle Trachtenberg , Odette Annable , Olivia Wilde , Peter Jacobson .