hi guys! okay, the fic i'm looking for involves dean getting kidnapped by a guy and his wife who are convinced that dean is their son. in reality, i think the son ran away or something (?) because his parents are pretty nuts. the husband convinces a dude at a bar who previously beat dean up to help him kidnap dean, and they keep him locked up in a bedroom and his wife drugs dean a lot to keep him under control. the couple is also responsible for killing several other guys who they've used to try and replace their son before.
i hope this is descriptive enough! thanks in advance!

update: found! thanks so much! :)