Beth Behrs

Raj learns he is dating a married woman. Sheldon rents his old room back for a quiet place to work, which drives Leonard crazy.

Castle and Beckett work the case of a man found dead inside a pizza oven, who turns out to be a reporter.

While investigating a deadly dispute, Kensi connects with a discharged Navy intelligence officer who has post-traumatic stress disorder.

Jennifer welcomes "The Neighborhood" cast: Beth Behrs, Max Greenfield, Cedric The Entertainer and Tichina Arnold; K-pop star Taemin performs.