Here it is, folks: the first ever Sims challenge to have it's own expansion!

This version of the Serial Killer Challenge requires:

University, Open For Business, Nightlife and FreeTime EPs
Paladin's weapons from SimWardrobe
A twisted sense of humour and a willingness to simulate mass murder

How to play

Create your killer. This can be a creepy Sim like the original challenge, or you can make your killer look dapper/pretty. Either gender will do, any aspiration you like. However, they must be an adult.
Create a custom lot. Unlike the previous challenge, you do not need to build a prison - you are going to do a Marcel Petiot and turn your lovely domicile into a charnel house, furnished with all kinds of mind-bending horrors.
Pick a couple of rooms in your house, one to serve as a torture chamber, and another as a weapons room. Keep doors to both rooms set to "Lock.../Allow Me Only" at all times.

In the weapons room:
Fit the room with shelves or tables in whatever layout you like. By this time you should have downloaded some of Paladin's things, like the Disintegrator Ray and the Incendiary Bomb. Buy as many of those items as your weapons room has space for. DO NOT STORE WEAPONS OUTSIDE THIS ROOM! Once your killer has finished using a weapon, you must use the hand tool to put it back IMMEDIATELY. Failure to do so will cause you to fail the challenge.

In the torture chamber:
Dr. Petiot should be proud of this room. It should be nice and large, big enough to house a small hexagonal isolation chamber with lockable door and the following items:
Cowplant (Laganaphyllis Simnovorii)
The Eclectic and Enigmatic Energizer
Elixir of Life
Noodlesoother


Once your house is built, create your sim, move them in and furnish the required rooms as described above. Now your Sim is ready to start their unofficial career as a serial killer. Wait for random neighbours/townies to amble by. Once they do, get your Sim to greet them and then lure them into the torture chamber. Once they're inside, quickly dash out and lock the door, trapping the helpless neighbour/townie in the room. Once they're inside, use the boolProp testingCheatsEnabled true cheat, shift-click on the trapped Sim and select MAKE SELECTABLE to prevent them from simply bypassing the locked door. Then let your killer Sim happily go about his business while the trapped Sims slowly die from needs failure. Put one Sim inside the isolation chamber and the rest can be tortured with the various other items - if those Sims are in green or red aspiration, the negative effects of the aspiration rewards are triggered. There's a reason why each aspiration reward is tagged with an identical warning label!
The Energizer and Noodlesoother will both malfunction and drain the victims' motives, hastening their demise. The Elixir of Life will eat away at their life expectancies, and of course the cowplant will gobble unsuspecting Sims. However, I do recommend putting a shower stall in the chamber, since the cowplant won't eat Sims with low Hygiene. Once the torture devices are used up, however, you will need to replace them.
Now here's where the weapons come in: while one batch of victims is slowly dying in your personal chamber of horrors, your Sim can also invite other guests into the normal parts of the house and use all those lovely weapons on them. Pour them a drink and then shoot them with the disintegrator while they're occupied. Plant the Incendiary Bomb near them, set it and run!
Use the Assault Rifle to cut down a group of party guests. It's Sim-splattering madness! Just remember to PUT THE WEAPONS BACK when you're done and CLEAN UP THE URNS the Grim Reaper leaves behind. If you like, you can sell the urns, but be careful since this has been known to corrupt lots and neighbourhoods on some systems.

Rules
You may not capture or kill Tiffany Zarubin... simply because the game will not let her die! Not even Paladin's arsenal did the trick!
You must not leave any weapons laying around. You will fail the challenge if this happens. As soon as your killer is finished with a weapon, put it back in the weapons room. Weapons must not be put in your killer's inventory.
Weapons must not be used outside: someone might see the murder and the last thing the killer needs is any witnesses.
Your victims must die on their own or on the business end of a weapon, no boolpropping their deaths(eg. no using Rodney's Death Generator).
You can trap multiple victims for bonus points, but watch out! I've had victims escape on me and this will cause you to lose points(and your neighbours will actually become suspicious of you!).
You can call neighbours and invite them over in order to trap them.
Your killer may not drink the cowplant milk. Make your victims drink it, hehehe
Your killer may not drink the Elixir of Life. Use it to torment your victims.
Your killer may not visit community lots, since the police are on the trail and the killer must avoid detection. Friends/lovers/potential victims have to come from the sidewalk and welcome wagon.
The challenge ends when your killer dies of old age.

Scoring

+200 for each visitor burned to death
+100 for each visitor disintegrated or shot
+30 for each neighbour your Sim traps
+20 for each NPC your Sim traps
+10 for each victim you trap using boolProp

Bonuses

+25 (on top of the base value) for each additional lured victim if multiple victims are in there at once
+15 (on top of the base value) for each additional boolpropped victim if multiple victims are in there at once
+30 for each victim eaten by the cowplant
+10 for each time a victim freezes solid
+20 for each time a victim suffers heatstroke
+40 for each victim struck by lightning
+30 if the victim is someone the killer was best friends with
+50 if the victim was the killer's crush
+70 if the victim woohooed with the killer at least once
+100 for each victim who becomes a ghost
+50 each time the social bunny makes an appearance
+2000 for disintegrating Rod Humble (it requires precision timing, but it IS possible!)

Penalties

-50 for each victim who escapes
-10 each time your killer's aspiration level drops into green
-20 each time your killer's aspiration drops into red
-30 for each neighbour who declines a telephone invitation to come over
-30 for each potential victim you fail to trap
-50 if a romance goes bust
-100 for each urn broken
-2000 if your killer or their partner procreates
Fail challenge if weapons are left laying around or used outside
Fail challenge if killer dies of anything other than old age

No bonuses or penalties given for torturing with aspiration rewards.

It's not just Tiffany Zarubin. Any member of the Garden Club will be immortal until you move them into the household as an active sim. Then you can "Make me a Townie" with the cat from simlogical and they are fair game.

*shrugs* I'd just prefer to leave them out of the challenge. There are plenty of other Sims to kill.

i've started this challenge. thank you for it, i'm having fun so far.

i'll try to get some pictures up when i open my game again.

Challenge Patch:

There is an exception to the 'no weapons outside' rule: since you can't invite Rod Humble in, you can shoot or burninate him just after he puts the computer down on the front porch. All other visitors, however, must be brought inside before you can off them.

Like in the original challenge, you can also boolprop-select victims and get them into the chamber that way. You get less points for this though.

Unfortunately, I seem to have lost the pictures I took, but here's my final score:

Killer: Ray Goodfellow

Rod Humble survived: +0
Trapped John Mole +20
Trapped Hannah Bell +30 +25
Trapped Natasha Una +30 +25
Disintegrated Nery Turner +100
Disintegrated Skylar Miguel +100
Disintegrated Luis Aspir +100
Disintegrated Nicholas Mamuyac +100
Trapped Rose Dal +20
Trapped Jace Macarevich +20 +25
Trapped Camryn Lee +20 +25
Disintegrated Jihoon Hsu +100
Trapped Christy Toyonaga +20
Trapped LaShawn Cameron +20 +25
Disintegrated Nikki Zhang +100
Trapped Komei Dennis +20 +25
Lost Yamsi Tomyoy -50
Trapped Linda Barthelet +20
Trapped Tyler Fuchs +20 +25
Trapped Maloko St. Julien +20 +25
Trapped Carl Chalmers +20 +25
Green Aspiration -10
Disintegrated Shelby Fairchild +100
Trapped Christa Hsu +20
Trapped Vyn Scott +20 +25
Trapped Lexie Vu +20 +25
Failed to woo Christy Inada -50
Lost Christy Inada -50
Fed Vyn Scott to cowplant +30
Green Aspiration -10

TOTAL 1175

You can also boolprop and give the death token.

Wow...I kinda wish I could do this. But I don't have all the EP's. This challenge is quite hilarious for some reason. haha

Lmfao. I failed this; my killer died. I guess the bomb went off farther than I thought it would and she wouldn't run when I told her to. Ahahaa.

Muahahahaha!
I tried this a long time ago but i forgot to post, but I epicly failed.
I plucked a random sim from the sim bin in a neiborhood I never used. (the only neiborhood I ever use is pleasantview, thank you)
It turned out to be that random guy with the last name Gyck or something. Giek...Geek...Gyck...anyways I downloaded stuf from sim wardrobe and got started. Well I guess I epicly failed because I have the Zombies auto kill hack, and I sorta forgot, and he wanted to make a zombie of his victim, and I felt like doing that cuz I was bored, and the zombie killed him before i could stop it. Talk about fail. I guess that's what I get for bending the rules!

Chester Gieke?

yeah, him! I gave him a goth makeover!

Piccies?

Oh look a challenge for my Lecter sim I have to remake! XD

This challenge seems ever so slightly epic, butI don't have freetime, I will be purchasing it soon, so when I get it, I will have a go at this somewhat physcotic challenge.

Why, thank you! I knew you'd understand.

BTW, you can't trap an NPC. They'll fade away.

aww.. i wanted to do it but i only have pets and seasons

There is another way to get victims into your Torture Chamber. You can move_objects them in.

Do something about it before I use it to gain points...

Great challenge, but do you really need freetime? Cuz I uninstalled that and nao I can't install it cuz of Norton.

I was thinking of making a waiting room for victims so I keep them there and then wait a little, and then go out to lunch, then come back and kill them by gun.

Also, Incendiary bomb room...

I'm a very violent person...

Move_objects would be the same as boolpropping. And yes, you do need FreeTime.

I love ur challenges, they're creative and fun. Plus less complicated than some of the others I've seen on here, can't even get through their descriptions and rules cause it takes so long...Anyways I don't know that I'll do the challenge but I do like when people post their results =)

This challenge seems fun, I wonder if i can do this one! lol
and get piccies at the same time too, harder!
But i'm going to give it a go anyway!
It may take a while to come back to you But i wont choose a teen i don't think as it will take ages.lol
I want to be the first to come back with piccies!
IS it ok to come and show you pictures before i have finished for fun?
I'm sure others will like to see them. :p

I'd love to see how you go!