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I could get some of the details wrong about these, I haven't seen them in a while.
The first one was about a group of friends, one of which had their father die in a car accident, go to a cabin in the woods and start being picked off one by one by a zombie. Yeah, just one. It was made recently.
The other is about a haunted house attraction, I believe, where all the people in costumes turn into the real thing. Please help me.