Extract the game file again, sometimes the extraction can be faulty. Also make sure you have the RTP file installed (link in the 1st post) and for the saves issue, make sure the game isn't extracted into a system folder and/or the folder doesn't have any symbols or characters like $,%,#, etc. in the name.
If you downloaded the savefile from here, extract the file and put the extracted save in the same folder where the game.exe is located.
Ok, but were will be the second kniffel? I have look on any places...I was thinking there is some in the libary...but there is nothing. Is something in the underground? Or must I found and cell a totaly other item?
The knife for the cosplay thingy can only be found in the attic, but it only appears after you try to modify the costume. Choose either the top or bottom piece and try to change it, you'll get 2 "???" options, quit the cosplay thingy and the MC will mention about making them skimpier, then go to the attic and repeat the interaction the next day.
go to the front gate right after waking up, you would meet the merchent. then go to doyle and he will say you can get something to sell in the attic. go to attic, get a dagger and a ring from the attic. the ring can be used to call doyle anytime without going to the basement.
Don't know how much progress you had, but I went and made a save for you just right after selling the dagger of Melchior, so you don't have to worry about buying the pills. Looks like the bug is still present or somehow a lot of people sequence break or something, cause I've never found that bug and I've played through the game's different versions multiple times and I couldn't replicate it hahaha. Anyways, sad thing is that as I mentioned at the start, I don't know how much progress you had with the girls so I didn't interact with any of them, so no progress made with any but you can now use the "Spend the Day" option just before getting out of bed so you can spam the options until you reach the max "level" with each girl.
I believe it was possible with Wine (if I'm not wrong on the name) but apparently after the latest update, it's not possible and since I don't own a Mac, I haven't looked into options to play. Maybe create a Virtual Machine with Windows? Although it will really be a bigger hassle haha
