I think i've come across a bug. For those who don't want spoilers feel free to stop reading here.
I've gotten rather far into the game recently and after moving to the mansion, completing lady's quests etc, I'm on the quest titled A Night To Remember. I've talked to jewel, slept a day to give her time, and talked to her again. However, I am unable to enter carceburg again to talk to martin in the bar. I cant enter through the abandoned house's front door to carceburg and I can't go through the fiend base to carceburg either. I don't know if this is a bug or intentional until that section of the game is finished. If so, I'd just like some confirmation.