So I just watched the good ending of "Mad Father" And in the ending scene where maria the assistant says"It runs in the family" And theres a doll behind one of the desks. Does that mean Aya also make people into dolls?
Yes, in that ending, Aya did start making dolls like her father. This is because while her and Maria were leaving the house, Aya found a book. The book most likely held memories of her father, so the last of his spirit basically latched on to her, causing her to take part in his "studies". I personally don't find this a "good" ending, since the cycle of "experimenting" never does end.
Was that considered the ''good'' ending? There should be 3 endings: a bad one, an okay one and a good one. I never really got to see the ending if you choose to go with your mother.