...what happens in the end ? I mean we see him raising the knife and all, but I sort of expected him to kill his father instead and felt kind of cheated when it is left sort of ambiguous.
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Well if it was true to form as with other "the Shadow over Innsmouth" adaptations, I assume he killed his friend, as in the story he is slowly changing into one of the creatures, and ends up accepting his fate....
shareI would, however, assume he killed his father, as we really never saw any character development where he even starts accepting his outworldy nature.
As he was leaving the house and calling for Michael's name, the choice was made.