A heartless lover hunts Angel.

Investigating a vampire attack, Angel runs into and stakes Elisabeth, a very old acquaintance from his vampire days. Discovering her death, her partner of centuries James searches Angel out after having an operation that will make him invincible - for a time.

Far away, Darla is searching for the answer to a little trouble she's found herself in.

Quiz - ten quick questions.

Trivia: Discussing why James could have become invincible, Cordelia mentions the Gem of Amara, seen in Buffy episode The Harsh Light of Day and Angel episode In the Dark. It makes vampires completely invulnerable.

The Buddhist monastery where Angel is attacked was quite a challenge for the show's designers. "We did a lot of extensive research looking at monasteries from all over Asia, through Bhutan and Burma, and came up with a design that we really liked," Production Designer Stuart Blatt told us.

You can read the whole interview here.

Amy Acker joins the regular cast of Angel with this episode. She had previously been a recurring guest star in the last episodes of season two.