Synopsis by Brian J. Dillard
Old duffer Marcus Rosco (Rance Howard) loathes his life in a nursing home, so he bones up on his magic and learns to switch bodies with younger folks -- a process that proves fun for him but extremely hard on his host bodies. Of course, a vampire body is immortal, so Angel (David Boreanaz) turns out to be the ideal candidate for a switcheroo. Unaware that the vampire hero has been evicted from his own body, Angel's friends and foes alike suffer through Marcus' escapades. He toys with the affections of Fred (Amy Acker) and then crushes them with relish -- and engages in fun and games of a more physical nature with evil lawyer Lilah Morgan (Stephanie Romanov). Eventually, Marcus realizes that he can live forever in Angel's body if he just kills his own aging vessel. The gang intervene, however, saving their boss' spirit and sending it back to its proper receptacle. Originally broadcast October 15, 2001, on the WB network, "Carpe Noctem" marked season three, episode four of the supernatural comedy drama.