You're only as old as you feel.
Fred, still painfully shy, develops a crush on Angel. Rather than have an awkward conversation to explain things to her, as Cordelia wants, Angel throws himself into work.
Whilst investigating a rash of deaths amongst young, fit men, Angel runs into Marcus, an old man who uses a spell to swap bodies with him. Back at the hotel, Marcus puts his new body to good use, especially on Fred and Lilah.
Luckily, unlike Marcus, Angel has friends...
Quiz - ten quick questions.
Trivia: The title, Carpe Noctem, is latin for "Seize the Night."
Willow's call at the end of the episode ties in, of course, with the events at the start of Buffy season six. Buffy's been raised from the dead, and the Scoobies have finally got round to telling Angel.