->''"It's not the demon in me that needs killing, Buffy. It's the man."''

Angel is haunted by the spirits of people he's killed, and the Scooby Gang suspect an ancient evil is involved.

* AbsurdlySpaciousSewer: Fourteen million square miles of them, and that's not including a lot of natural cave formations and a gateway to Hell.
* AccidentalInnuendo (InUniverse): Joyce is putting up the Christmas decorations; Buffy is thinking about her EroticDream.
-->'''Joyce:''' So, angel's on top again?\\
'''Buffy:''' (startled) What?\\
'''Joyce:''' (holds up an angel and a star) Angel or star?\\
'''Buffy:''' Oh, uh... star. Star.
* ActorAllusion: The maid Margaret is played by Cornelia Hayes O'Herlihy, who played Princess Margaret in ''Gods and Monsters''.
* AlwaysABiggerFish
-->'''Willy:''' Apparently there's been a lot of migration out of Sunnydale from the lower inhabitants. Something's scaring them off, and these are things that aren't easily scared.
* TheAtoner: Xander helps Buffy find out what's wrong with Angel, presumably to make up for his actions re Angel in "Revelations".
* BlatantLies: Faith turns down Buffy's offer of Christmas dinner, claiming she's already been invited to a big party.
* BreakingSpeech: Plenty of these by the First to Angel.
* ChekovsGun: The dead Christmas trees.
* ChristmasEpisode
* ChristmasMiracle: [[spoiler:It begins snowing on Sunnydale, leaving the town in total darkness, and saving Angel from burning. MaybeMagicMaybeMundane]].
* ContinuityNod: Joyce claiming that Giles didn't want to share Christmas with them is undoubtedly due to the embarrassing events of "Band Candy".
* DissonantSerenity: Giles opens the door to find Angel standing there asking for a VampireInvitation. He keeps it together and walks into the kitchen, then comes out with a loaded crossbow. OhCrap.
* DoNotTauntCthulhu: Unless you're Buffy.
-->'''The First:''' You think you can fight me? I'm not a demon, little girl. I am something that you can't even conceive. The First Evil. Beyond sin, beyond death. I am the thing the darkness fears. You'll never see me, but I am everywhere. Every being, every thought, every drop of hate--
-->'''Buffy:''' Alright, I get it. You're evil. Do we have to chat about it all day?
-->'''The First:''' [[YouHaveNoIdeaWhoYoureDealingWith You have no idea what you're dealing with.]]
-->'''Buffy:''' Let me guess. Is it...evil?
* DrivenToSuicide: Angel tries to kill himself by allowing the sunrise to immolate him. [[MaybeMagicMaybeMundane He's saved]].
* EldritchAbomination: The First briefly morphs into one before disappearing.
* EurekaMoment: Buffy realising the dead Christmas trees reveal the location of the Bringers.
* EroticDream: The First gives Angel these to entice him into sleeping with Buffy and losing his soul.
* EvilIsBurningHot: A heatwave envelops Sunnydale; as soon as the First Evil is driven off, the temperature drops rapidly, creating snow.
* EvilPlan: The First wants Angel to kill the Slayer, and in the process turn him back into the evil Angelus. Angel decides to prevent this by committing suicide, but this is also acceptable to the First, as it means Angel can no longer be a weapon against evil.
* ExactWords / StealthPun: Willy says he's picked up some information from the Underground. "You know, from things that live under the ground."
* EyelessFace: Bringers, Harbingers. They have a 'no eyes' kinda look.
* FailedAttemptAtDrama: After Willow says she wants to sleep with him, Oz responds by standing up.
-->'''Willow:''' Where are you going?
-->'''Oz:''' No, I'm not going. Just a dramatic gesture.
** SomethingElseAlsoRises: After Willow goes into more detail about what she wants from him, he quickly has to sit down again.
* FinalBossPreview: The First Evil will return as the BigBad of Season 7.
* {{Foreshadowing}}: Angel drinking Buffy's blood comes to pass as the First predicts, albeit for different reasons. And we get our first mention of Xander's troubled home life in a reference to him sleeping outside to avoid their drunken squabbles.
** What Buffy says to Angel "Strong is fighting! It's hard, and it's painful, and it's every day" is what he puts into practice in the spin-off series ''Series/{{Angel}}''. That series also continues the theme of higher powers (both good and evil) seeking to control or protect Angel for their own purposes.
* FlashbackEcho: Showing Angel as the drunken lout he was before being turned into a vampire.
* {{Frothy Mugs of Water}}: PlayedForLaughs as Willow has a couple of soda bottles in a champagne ice bucket.
* HaHaHaNo: Giles is less than pleased when Angel (who in their last encounter was torturing him) shows up at his doorstep.
--> '''Angel:''' I'm sorry to bother you.
--> '''Giles:''' (stares, then bursts out laughing). Sorry. That's just rather funny, coming from you. (Chuckles) "Sorry to bother me."
--> '''Angel:''' I need your help.
--> '''Giles:''' And the funny keeps on coming.
* HardWorkMontage: The Scoobies researching the problem (and eating pizza).
* HoldingHands / SnowMeansLove: Buffy and Angel at the end of the episode. Definitely not JustFriends.
* HorrorDoesntSettleForSimpleTuesday
* HumanoidAbomination. The Harbingers
* IDidntMeanToTurnYouOn: Angel encounters Buffy in her bedroom wearing a blood-red dress, her hair pinned up to expose her neck and her lower lip trembling from repressed emotion -- he has to jump out the window to prevent himself from jumping her.
* IHaveAFamily
-->'''Margaret:''' (terrified) Sir! My son!
-->'''Angelus:''' Oh, he'll make a fine dessert.
* InadvertentEntranceCue: Xander asks who else could have as pathetic a social life as he does. Cue Willow walking through the door.
* IronicEcho: "Cry out. Make a scene."
* InsecureLoveInterest
* IWishedYouWereDead: Inverted
-->'''Buffy:''' I love you so much... And I tried to make you go away... I killed you and it didn't help. (crying) And I hate it! I hate that it's ''so'' hard... and that you can hurt me ''so'' much. (sobs, then harshly) I know everything that you did, because you did it to me. Oh, God! I wish that I wished you dead. I don't. (whispers) I can't.
* NoTimeToExplain: Buffy to Faith -- AesopAmnesia is averted when Buffy stresses that she ''will'' explain, all of it, remembering the lesson of "Revelations".
* LadyInRed: Invoked deliberately by Willow and accidentally by Buffy.
* LetsWaitAwhile: Oz turns down Willow's offer to lose her virginity, aware she's doing it just to prove she really loves him.
* MindRape: The First tries to pull one on Angel.
* NamesToRunAwayFromReallyFast: The Harbingers of Death.
* OminousLatinChanting
-->'''Buffy:''' Alright, ten more minutes of chanting and then you guys have to go to bed.
* PerpSweating: Xander isn't very good at it.
-->'''Willy:''' Doesn't ring a bell.\\
'''Xander:''' (menacingly) How about I ring that bell for you? (hopefully to Buffy) Does the threatening come now?\\
'''Buffy:''' Maybe you shouldn't help.
* {{Rape Is a Special Kind of Evil}}: Angelus bullies a servant into agreeing to have sex with him, and ''then'' shows her his GameFace.
* ReadyForLovemaking: Oz enters Willow's house to find a candle-lit room, Willow wearing a tight red dress, and BarryWhite's "Can't Get Enough of Your Love, Babe" playing on the stereo.
* TheReveal: We finally discover why Angel was brought out of the hell dimension: to kill Buffy. Buffy is not willing to accept this explanation, and the fact that the First is willing to settle for Angel's suicide is an indication she's right.
* SayYourPrayers: One of Angelus' victims says the Twenty-third Psalm.
* SexForSolace: What the First tempts Angel with -- by sleeping with Buffy he can satiate his desire for her and then, by turning evil, be free of guilt forever.
* ShutUpHannibal: Buffy pulls one on the First Evil, which is the Buffyverse equivalent to {{Satan}}, after the latter's BreakingSpeech.
** Actually, Satan DOES exist in the Buffyverse. He's just [[Recap/BuffytheVampireSlayerS7E18DirtyGirls "a little man".]]
* SuicideBySunlight: Angel tries to do this, but a miraculous snow shower clouds the sky so the sun doesn't show.
* TalkingDownTheSuicidal: Buffy doesn't actually succeed, but fortunately a Christmas miracle occurs instead.
* TalkingInYourDreams: Buffy is somehow able to see what Angel is dreaming, perhaps in order to further torment him (given that Buffy has a front-row seat on Angelus' crimes). During the EroticDream however it's more a case of "Screwing In Your Dreams".
* {{Tearjerker}}: Buffy trying to talk Angel out of killing himself.
* ThisAndThat: Willow offers to "do that thing" with Oz.
* TwistedChristmas
* TwoScenesOneDialogue
-->'''Giles:''' You realize if he [Angel] truly becomes a danger, you may have to kill him. Again. Can you do that?
-->''Buffy is silent. Cut to Angel in his mansion''
-->'''Angel:''' I can't do it!
* TheUnreveal: We never find out if the First or the PowersThatBe were responsible for bringing Angel out of the hell dimension, [[spoiler:or if the snowstorm was due to the sudden drop of temperature or another miracle by the PowersThatBe. In the ''Series/{{Angel}}'' spin-off it's revealed that the forces of both good and evil have a vested interest in his survival, so either party could be involved.]]
* VillainsNeverLie
-->'''Buffy:''' Some great evil takes credit for bringing you back and you buy it?
* WalkingWasteland: The Bringers cause the Christmas trees to wilt over their heads.
* YouHaveNoIdeaWhoYoureDealingWith: And at this point in the series, Buffy really doesn't know. Then again she doesn't really care either.