It's dark and a little windy. We see the Simpson's house and little kids going up to it. One of the little kids dressed as a ghost rings the doorbell. The door slowly opens as they see an arm and leg sticking out.

"Trick-or-treat!" The kids said playfully. The door then fully opens, and someone in a scream mask is holding up a butcher knife.

"AHHHHHH!" scream the children as they dropped their candy filled bags and ran as fast as they could away from the house. The 'scream' guy picked up the candy bags and walked inside.

"(Evil laugh) MWAHAHAHAHAHA! (Walks into living room, laugh turns into Bart's) Heheheh. Suckers." laughed Scream as he took off his mask and turns out to be Bart. (Dumps all the candy onto the floor) "Yummy! A bag of 'Night of the living gummie bears'" Bart said as he ripped a bag open and took out little gummie bears with chocolate knives in their hands.

"Cool!" Bart said not even noticing the guy in a scream mask sitting on the couch. The Scream guy got up and held up a knife. Bart noticed the shadow that had casted over him and turned around.

"Hello, little boy," Scream said and stabbed Bart, really badly. The words 'Treehouse Of Horror-million' in blood fly onto the screen. Then Bart's head comes flying and his head hits the screen then starts falling, bringing us to a new scene. The family runs to the couch, and sit on it then it starts to devour them, first it eats their legs then their body, and finally, their heads. Then the couch burps, and Marge's hair comes out.

FOR CRYING OUT LOUD, SCREAM!

It's a beautiful day as we go to the Simpson living room. Lisa is planning on having a party, on the count of Homer, Marge, and Maggie are going to the retirement castle to see grampa. Bart was baby-sitting, but he liked Lisa's idea for a party, so he allowed it.

"Next Ralph, then Sherri and Terri, and Milhouse, OOH! AND..." Lisa said as she made a list for the party guests.

"Hold on! How much people do we have coming?" Bart asked.

"11 guests are on the list!" Lisa replied.

"Uh, lets see... we need to get rid of one person, who's at the bottom of the list?"

"Milhouse"

"Erase him." Bart said in a grimly voice.

"Why? He is your best friend." Lisa said.

"Yeah, but if he comes over we wont have any fun! DUH!" Bart said.

"Oh, makes sense to me!"

(Later in the garage)

"Dad, what are you doing?" Lisa said as she walked in and saw Homer working on something.

"Well sweetie, daddy's making an ultra super, can kill instantly, sharp, easy to carry knife!" Homer said as he showed his progress.

"Almost finished... there! FINISHED! Now, was there something you wanted to tell me?"

"Well dad, can you take me to the Kwik-E-Mart?" Lisa asked.

"What meal did you ruin this time? It better not have been meatloaf!" Homer yelled at Lisa.

"Its not that, its just that we need to restock on food!" Lisa lied, kind of.

"Do you have a list, cause I'll just go get the stuff.

"Right here! (Hands the list to Homer)"

"D'oh" Homer said, then Homer thought, "Next time, she gets the stuff!" Homer then laughed out loud.

"What's so funny?" Lisa asked.

"NOTHING!" Homer said as he quickly ran right threw the garage door then drove away.

"What ever." Lisa said as she went back inside.

(Later)

Ok, next is Martin!" Bart said as he rode his bike right past Milhouse.

"Ralph!" Lisa said as she zipped right by Milhouse.

"Wonder what they are doing?" Milhouse thought to himself.

"Can you wait for the party tonight?!" Martin said as he skipped around Milhouse.

"Party?" Milhouse said as Martin's invitation landed in his hands.

"A party, and my best friend didn't even invite me? WAH!" Milhouse cried as he dropped the invite and ran into his house crying.

(Later at the party)

"Hey Bart! Heheheh." Sherri and Terri chuckled as they walked in.

"Dude, where did all the squishie bars go?" Ralph asked Bart.

"We have more in the garage! Hold on! Hey Terri!"

"Yeah?"

"Go in the garage and get some squishie bars!" Bart yelled over the music.

"OK!" Terri said as she stopped dancing and went into the garage and closed the door. She looked around and saw Homer's knife.

"Creepy." Terri quietly said. She opened the fringe door and got out some squishie bars. She then just heard fast footsteps run in and out of the garage. She turned around and the knife Homer made was gone.

"AH!" Terri said as she looked around. She heard "HEHEHEH" and ran for the door. But their, blocking it, was some guy dressed in all black with a Scream mask on, and he had the knife! He took a step closer, then another, then another, then he stopped and chuckled.

"GO AWAY!" Terri screamed and started throwing Squishie bars at him.

"Ouch! OW! Stop! They are cold, and hard! EW! You stained-ow! -My robe thingy-ye-OW!-you'll pay for that!" Scream said as he threw the knife, and missed her, but got stuck in the wall. Terri ran for the door, but it had a lock, and she didn't have the key! She pressed the garage door opener, and ran for the doorway, just as Scream got the knife.

"If I time it right..." Scream said, "NOW!" He pressed the garage door closer, and the door started to close, Terri thought she could make it, but she was wrong, and got squished! The door slowly started to open- (The lock only locked from the inside)- "Terri? Its me Sherri, what's taking so long with the- AHHHH!!!!" She screamed when she saw he squished sister lying there. Scream was hiding in the shadows, and then walked up behind her and got ready to stab her, when the door busted open, IT WAS A CONGA LINE!

"Cha, cha, cha, cha, cha, CHA! Cha, cha, cha, cha, cha, CHA!" The conga line was going around Scream and making him dizzy Sherri ran over him and joined-(LOL)-He got so dizzy, he fell!

"HEY! He was going to stab me, and I bet he's the one who killed my sister!" Sherri said as she pointed to him.

"Lets unmask this murderer." Lisa said as she went up to him and took the mask off, revealing him.

"MILHOUSE?! Why? I thought we were friends!" Bart said as he ran up to him.

"Uh- so did I, but I guess friends aren't supposed to invite people to their parties, HUH?! 'Cough'" Milhouse said.

"So, you went on a killing spree because of a stupid party?" Lisa said, outraged.

Milhouse nodded then said, "And I would've gotten' away with it to! If it weren't for you meddling kids, and your stupid conga line!"