Phyllis Lyons

House and the team encounter a teenager who collapsed during her high school Christmas program. They soon find the troubled teen dealt with more than her share of bullying at school, and as her condition continues to deteriorate, the team must delve deeper to get to the bottom of her mysterious illness. Foreman continues to work with Thirteen on the Huntington's disease drug trial, and their relationship progresses when he learns a valuable lesson from her. House gives a clinic patient an unbelievable holiday gift and keeps the team guessing about who may have sent him a particularly thoughtful Christmas present. Meanwhile, Cuddy receives an unexpected gift of her own.

Jane and Maura investigate the mysterious death of a young boy whose family is from Cape Verde. At first, it appears that he may have died during an attempted exorcism, and it may take a message from beyond the grave for Jane to pinpoint exactly what happened. But Jane becomes distracted from the case when her mother, Angela, sets her up on a surprise date. Recurring guest star DONNIE WAHLBERG appears as Lieutenant Grant.

As Jack follows the terrorist, President Keller is presented with a drastic alternative even as Heller and Audrey decide to foil the terrorists' plans by taking their fate into their own hands.

This episode features the following cases: E-Mail; Cup of Joe; Secret of the Family Tomb; Wheezer; The Unknown Patient.

Berluti represents a young girl who was bitten in the face by a dog. A juror communicates with Lindsay during a trial. Eugene defends a one-legged African American man accused of robbery.