Hello! Thank you so much for playing the game and persevering through it :'D I hope you're able to get some good sleep now haha
Exiting out of the folder has turned out to be a bit of a problem! I'll write a note somewhere for it.
[SPOILERS]
And oops! I didn't mean for that clue to point toward Sophie/Samuel/Sabrina. The letter is indeed for Angela, and her father was about to write "son". This story point was going to be expanded upon in another clue, but as I mentioned in another comment, the clue I originally wrote was no good, so I took it out but didn't have time to rewrite it.
Glad you were able to enjoy the game regardless of the little hiccups! Thanks for playing again!