As the study group returns after winter break, Jeff reveals that he's been seeing a shrink and he's on anti-anxiety medication. The newfound confidence leads him to experience debilitating levels of narcissism, which Britta tries to help him manage. Meanwhile, over the break, Abed developed a celebrity impersonator habit that has saddled him with debt. In order to help Abed shed his debt, the study group dons costumes and goes to work for Vincent as celebrity impersonators - appearing in character at a Bar Mitzvah celebration.

Source: NBC