This feels very hand wavey to me.
So she feels progressively ill and then dies, all without ever seeking medical attention? I suppose they assume it was acute / she collapsed, but it still seems unusual. She's only 65 remember.
But then Gene's just walking around the house for a week? With his dead wife in the bathroom and a barking dog in a crate??
I haven't dealt with Alzheimer's but you're telling me it's possible to be functional enough to eat and sleep for a week, but not know that your wife is dead and the barking dog needs food and water? And you don't ever seek help or outside assistance?
And then, coincidentally, you also die of a heart attack.
Just seems far fetched to me.
Edit: I guess at 95 he might have mobility issues, so maybe he couldn't call for help? Idk still seems odd.
And the dog?
This is tragic and painful to imagine. He was suffering severely from Alzheimer's. The dog was in the crate. The wife collapsed and died from hantavirus infection all while he was walking around and didn't notice? It's quite terrifying if this is how vulnerable people with Alzheimer's are in their own homes.