So, I've been hankering for a roleplay with a serial killer. My general idea is that my character would be said serial killer's lover, and pretty much the only person that the serial killer finds himself unable to kill. This could reflect in the victims he kills (they could resemble my character) or it could come to the front in the form of a complete and total need to keep his lover safe from the world. Or however else my partner wants to play it, but I'd presume that living with someone and keeping a secret that large would show up in some way. Conversely, my character could actually know that he was living with and dating a serial killer and either be so utterly loyal to him (maybe the killer could have taken my lover off of the streets and off of drugs, or something) or else so scared yet in love with his lover that he doesn't want to go to the police.
I'd see there being some complications with this, naturally. Either way we went (with my character knowing or not knowing about the crimes), I think it would be interesting for my character to have a brief affair, perhaps even with a cop (if someone wanted to play a cop I'd accept that for the roleplay as well).
So. I'd also like this to be male/male, with my character being the sexually submissive partner.
I know that's not the most fleshed out description, but it's a start, and I'd love to work anything out with my partner. If anyone has any ideas sparked by this or wants to modify the plot a bit, please let me know! I'd love to get a chance to put this into a roleplay.