The author says (didn’t you read the card?) that you need to restart/restore if all the characters are jailed. In my experience, if more than one is jailed, you need to restore. Because it took the collaboration of two, in order to free him. (I think there is another way with two characters jailed though, but not worth it)
I’ll repeat my suggestion in the other thread. This is not a spoiler IMO. After visiting many rooms and picking all the objects you can, you’ll probably get stuck. You need to do something on the roof. Use everything on everything there. If this does not work, maybe you need to first combine one object in the inv with another in another room, then come back on the roof and use that combined object on everything. Then you’ll do something that will open new possibilities.
btw, I played with Sister Angela and the blonde girl. But in the beginning I think it’s the same.
Let me know if you need more hints. If you do, tell me your inventory. I’ll tell you in what room to act.