I finally managed to complete the custom story, and I can tell you that it was a long project, mainly because I was busy in my personal life. To be honest with you, in several times I lost interest towards it, so it became little shorter than I originally planned.
I really hope you guys won't judge the mod too hard for being so short and I'm sorry in advance for those who feel this mod to be too short for their taste. There is approximately 20-30 minutes of gameplay(may take more or less time for some players).
As I have said before the puzzles aren't that hard, but the atmosphere is good.
Please make sure, that you have Justine DLC installed before playing this custom story.
Please enjoy this custom story and if you want, rate it the way you think it deserves. As always any feedback good or bad is very welcome, but please keep it constructive, thanks.
Unrar the files into Amnesia The Dark Descent/redist/custom_stories
If the ModDb download link doesn't work the mod can be downloaded from here.