I don't know from where you have taken that "ill or bedridden friend" point.
According to official movie introduction text by
Madonna -
I'm lending my wife to my best friend for three days, starting today.
Five years have passed since my wife, Tsubaki, and I moved.
When we first moved in, we were in trouble and it was thanks to my friend Ishii who helped us out that we've been living happily ever since.
Ishii, who has now become our close friend, unfortunately lost his wife six months ago and is apparently still very distraught.
When I heard this, I asked my wife, if I could go and help him.
She said, she would go to Ishii herself, saying I must be busy with my work.
I was worried about letting her go alone, but I trusted that she would be fine, helping Ishii...
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