I wouldn't mind doing something fantasy related with you. I love the Forgotten Realms setting, though we can come up with our own, homegrown setting if you'd like, as well. I was thinking my character could be human or orc, perhaps the head of a Fighter's Guild or maybe even a Theives Guild. He's big, tall, muscular, known and feared for his talent with an axe. I was thinking maybe he started out on the streets as a local tough, doing muscle work for a local guild, and when the time came, he executed a plan that took out the current figurehead and put him in power instead. The rest of the guild, likely either intimidated by him already or having been bribed to side with him, did nothing to stop the attack, resulting in his ultimate power. Now, an ally of the former guildmaster wants vengeance, and has sent your assassin in to do the job that the other traitorous guild mates should've done...dispose of the new guild king.
Let me know what you think. :)