After Mac arrives to the bar with scratches on his neck and exhibiting strange behavior, Frank comes to the conclusion that he is the serial killer terrorizing young women in Philadelphia. Frank sets out with his trusty chainsaw and a doubtful Charlie to find evidence to implicate Mac in the murders. In search of another suspect, Dennis and Dee do a little role-playing in order to help themselves better understand who they might be dealing with.
WAR
70.7
Wins Above Replacement
“Mac Is a Serial Killer” ranks #37 of 177 It's Always Sunny in Philadelphia episodes on the Humor Index, scoring 83.4 — Elite. The episode packs 64 scored jokes at 2.3 per minute, averaging 7.2 on craft and 7.0 on impact, with Dennis landing the most laughs. Every joke is ranked below with its individual craft and impact scores.
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Top Jokes
Pepper Jack · Dennis: Is that Fraggle Rock? Yeah. Oh, Pepper Jack love Fraggle Rock.
Dee · Frank: No. There's a bunch of severed heads in there. What? There's about 15 severed heads in there, I'd say.
Dee Frank Dark/Subversive Escalation ★ Rewatch Charlie · Mrs. Mac: You think your son's out there killing people? Yeah.
Mac · Charlie: Uh, more ripped. Strike that. Jacked. Irrelevant. Toned. Exaggeration. I work out. I'll allow it.
Mac Charlie Character Comedy Escalation ★ Rewatch Callback Gary: What are you people doing in my apartment?
Gary Escalation ★ Rewatch Callback All Jokes — 64 analyzed
Show all ↓ Hide ↑ Dennis: Describing an episode of Law and Order in full detail is not a story.
Dennis Observational Deadpan/Understatement ★ Rewatch Dennis · Charlie: You want to be a lawyer? Don't you think you should know how to read or write?
Charlie: Objection. Hearsay. That's lawyer talk. That's the kind of stuff you have to do.
Mac · Dee: Why? What are you worried about? You don't fit the description.
Mac Dee Setup/Punchline Character Comedy Mac · Dee: You're like a female Larry Bird. There's too much of you.
Mac Dee Character Comedy Escalation ★ Rewatch Mac: He would never finish the job. He'd get the job done. He'd spend his whole night hacking and sawing.
Mac Dark/Subversive Escalation ★ Rewatch Mac: How many people have I murdered tonight? How is this just one person?
Mac Dark/Subversive Escalation ★ Rewatch Dee: That's okay, 'cause Larry Bird's an excellent player. He's an awesome player.
Dee Character Comedy Reaction Beat ★ Rewatch Mac: What's up, bitches? Hey yo!
Mac Character Comedy Cringe/Discomfort Dennis · Charlie · Mac: These are different clothes. Where'd you get those scratches on your neck?
Frank Deadpan/Understatement Dark/Subversive ★ Rewatch Charlie · Frank: You can't just torture someone 'cause you think they're guilty. Oh, don't give me that liberal bullshit.
Dennis: He's not smart enough. He's a dumb person. And dumb people are not capable of serial killing.
Dennis Character Comedy Setup/Punchline ★ Rewatch Charlie: Let's carve our best friend to pieces with a chain saw based on a hunch.
Charlie Dark/Subversive Escalation ★ Rewatch Dennis: Sorry, Larry Bird.
Dennis Callback Running Gag ★ Rewatch Callback Mac: I forgot about this thing that I gotta do, take care of. I was thinking about it in the bathroom.
Mac Cringe/Discomfort Character Comedy Mac · Carmen: Because of your... Oh, God. Situation down there.
Mac Carmen Cringe/Discomfort Awkward Silence ★ Rewatch Carmen · Mac: You mean my penis? Well, you don't have to say it out loud.
Carmen Mac Cringe/Discomfort Character Comedy ★ Rewatch Mac: But then things start to get hot and heavy and you scratch me. Which is cool. But you're really strong, and it hurts.
Mac Cringe/Discomfort ★ Rewatch Mac: And sometimes... just sometimes... I bump up against it.
Mac Cringe/Discomfort Wordplay/Pun ★ Rewatch Frank · Charlie: Hold it closer to your face and look really crazy. Like I'm killing somebody?
Frank: Put your tongue closer to the blade.
Frank Dark/Subversive Escalation ★ Rewatch Dennis · Dee: You do not fit the profile. I fit the profile, Dennis!
Dennis Dee Running Gag Character Comedy ★ Rewatch Callback Dennis: I have a down jacket on, a wool blanket. It's a very toasty situation I got back here.
Dennis Character Comedy Irony/Sarcasm ★ Rewatch Frank: What's the decorating motif of this place... prison cell?
Frank Observational Character Comedy ★ Rewatch Frank: You think I want some Jew lawyer crawling up my ass in six months?
Frank Dark/Subversive Character Comedy Charlie: Objection. Extremely racist, man.
Charlie Reaction Beat Meta/Self-Referential ★ Rewatch Callback Frank: And Bingo was his nameo
Frank Absurdist Character Comedy ★ Rewatch Charlie: I woke up to you doing some pretty frantic research last night, pal.
Charlie Setup/Punchline Cringe/Discomfort ★ Rewatch Pepper Jack: Damn, girl. Who you with?
Pepper Jack: Maybe if you get up off that crack rock, you can come and be Pepper Jacks best ho.
Dee: But that stuff, you gotta be careful because it'll mess you. Why are you asking? Do you have some on you?
Dee Character Comedy Escalation ★ Rewatch Dee: No. Well, technically, we drove here together. But I'm not with anybody.
Dee Character Comedy Cringe/Discomfort ★ Rewatch Pepper Jack: Pepper Jack trying to conduct some business here too. You with this cracker?
Pepper Jack · Dennis: Do Pepper Jack look like he playing? I don't think Pepper Jacks playing.
Pepper Jack · Dennis: Is that Fraggle Rock? Yeah. Oh, Pepper Jack love Fraggle Rock.
Dennis · Dee · Waitress: We need to find somebody who we would want to kill. Here you go, Dee.
Waitress: And shithead. Hope you burn your tongue.
Waitress Character Comedy Escalation ★ Rewatch Mac: But it's like a drug. I just get wrapped up in the moment and boom, it just happens.
Charlie: Well, that's good. She won't be a problem. She ain't gonna tell anybody.
Charlie Dark/Subversive Misdirection ★ Rewatch Charlie: Deny, deny, deny, deny. You just deny it. Deny it to the end. If you deny something, it means it never happened.
Charlie Character Comedy Absurdist ★ Rewatch Charlie · Mac: And then I do some moves. What the hell does that have anything to do with what we're talking about?
Dee: My neighbor Gary works here. He is desperately in love with me.
Dee Character Comedy ★ Rewatch Dennis · Dee: Who's your guy? Psycho clown.
Dee · Gary: These shears, they do cut through bone, yes? Uh, yeah. I guess.
Dee Gary Cringe/Discomfort Character Comedy ★ Rewatch Dennis · Dee: Oh, man. That guy's a pussy. Yeah, spineless.
Dennis Dee Character Comedy Cringe/Discomfort ★ Rewatch Charlie · Dennis: Move to strike. Wait a minute. What are you talking about? Ask her fair questions!
Charlie · Mrs. Mac: You think your son's out there killing people? Yeah.
Dee: John Wayne Gacy? He was a psycho clown. He was an excellent one. Did good work.
Dee Dark/Subversive ★ Rewatch Dennis: Oh, shit. That's a bummer. Yeah, you're right.
Dennis Dark/Subversive Reaction Beat ★ Rewatch Dennis: if you hadn't been squeaking around like a goddamn psycho clown... she never would've noticed us.
Dennis Character Comedy Callback ★ Rewatch Callback Dennis · Dee: I know who the killer is. You do? Yes. Oh, my God. Dee, the real serial killer is Mac. That's what I just said.
Dennis Dee Character Comedy Irony/Sarcasm ★ Rewatch Frank · Dee: Are you shitting me? Now, Dee, can you do a girl's voice?
Frank Dee Character Comedy Setup/Punchline ★ Rewatch Mac: I'm not ashamed of you. I'm ashamed of myself.
Mac Character Comedy Cringe/Discomfort ★ Rewatch Dennis: When did you start hearing voices? That could actually help us.
Dennis Misdirection Character Comedy ★ Rewatch Mac · Charlie: Uh, more ripped. Strike that. Jacked. Irrelevant. Toned. Exaggeration. I work out. I'll allow it.
Mac Charlie Character Comedy Escalation ★ Rewatch Callback Frank: Because drawing a confession out of someone... is like doing a beautiful dance... a beautiful dance with a chain saw.
Frank Dark/Subversive Absurdist ★ Rewatch Mac: Ooh, not really into the whole condom thing.
Mac Character Comedy Cringe/Discomfort ★ Rewatch Dee · Dennis: Oh. Why hello, Mac. Not so young and attractive, is she?
Dee Dennis Visual Gag Setup/Punchline ★ Rewatch Callback Mac: I've been banging the tranny! I didn't want you guys to find out.
Dennis · Mac: What? Ew. Oh. I don't even know how that works. It's complicated. There's a lot... She tapes it back.
Dennis Mac Reaction Beat Cringe/Discomfort ★ Rewatch Mac: It's complicated. There's a lot... She tapes it back.
Mac Cringe/Discomfort ★ Rewatch Dee · Frank: No. There's a bunch of severed heads in there. What? There's about 15 severed heads in there, I'd say.
Dee Frank Dark/Subversive Escalation ★ Rewatch Gary: What are you people doing in my apartment?
Gary Escalation ★ Rewatch Callback Top Episodes — It's Always Sunny in Philadelphia