Thanks for the rating and review! The second day, you need to clap and listen to the whispers in level, when you arrive to it, you need to interact with it using left mouse click, you'll see dialogues and the story will continue! Try to find all of them in second day and you're going to next day.
About the outlines and game visuals, yes, I'm using a shader in camera like a filter. The outlines are a free asset from unity store.