Your Story Starts Here...
You wake up groggy. Your head feels hard and heavy, like that time you got really hammered and passed out on the floor. Wait, you ARE laying on the floor. This isn't even your floor. You try to run to the door in front of you, but after a few steps, your limbs are yanked back towards the wall by chains. You're trapped. They finally caught you. You thought you hid the body well... Nobody should have known. You didn't mean to, and it was only that one time...
A television turns on in front of you, and a man's voice starts talking. "Hello, and welcome to your wonderful new home. You may be wondering why you're here, which is a fair question. You, and a few other precious things that pass as human beings, possess one similar trait: your lethality. Yes, you've all done it. Killed at least one person, and each and every one of you kills very differently, which is why I couldn't just choose one. You see, I have a... let's call it a business proposal, shall we? I have something you want," the camera cuts to a video of the most important person to you "and I'll give it back when you complete my tasks. Heheh, so why don't you go to the tavern, huh? Just ask for the Moonlight Special. My contacts and I have you all hooked up there, buddy.
So Here You Are...
You're a very deadly group of people, not necessarily trained killers, but you've killed at least once and have the capacity to do it again. Each of you has a special, specific method of killing (unique swordfighting style, black magic, hexing, deadly poisons, etc), and you're going to be given series of missions, which will involve either directly killing someone or getting information from a person, with the details left up to the group. They have one person that means more to you than anything, and the only way to get him/her back is to do whatever this man says to do.
