Phil and Claire break from their traditional Valentine's Day dinner date and plan a little role-play excursion. Jay and Gloria's ideas of romance clash when he takes her to a comedy show.
When the bodies of two seemingly unrelated victims are found just hours apart, the BAU suspects that two killers are working together.
The BAU hunts a stalker targeting College students. The team comes under the scrutiny of the Section Chief in the wake of losing Emily.
Michael is surprisingly cheerful after learning bad news about Donna; new parents Pam and Jim have a hard time staying awake at the office; Dwight refuses to honor a contract.
Cameron asks House to accept the case of an environmental activist who collapsed at a protest with mysterious symptoms.