The story of Up works well because it’s heartwarming to see an odd couple go on an adventure together in a flying house and run into squirrel-addicted dogs. This alternate horror story version of Up also works because it’s easy to imagine Carl Fredericksen as an evil monster who takes Russell as his prisoner.
I think Pixar needs to start making horror movies. Until then, I’ll have to make do with these Bobby Burns re-edits.