On the anniversary of her husband’s death a widower’s life outlook is called into question by the arrival of her husband’s blind friend.

“A young widower’s bleak outlook is challenged by her husband’s [eccentric] blind friend on his death-iversary”
Another angle: chance encounter.

Apologies, made a typo in the last:

On the anniversary of her husband’s death a young widower`s bleak life outlook is challenged by the surprise arrival of her husband’s blind friend.

Thank you for this!

How about: On the anniversary of her husband's death a young widower`s bleak life outlook is called challenged by the surprise arrival of her husband’s blind friend.

Seeing and not seeing has bearing on the story, but there is no romance involved.

Jim in Japan.

What is her life outlook? Bleak? That would give a hint at why it's called into question. Also, maybe "challenged" is better than called into question. More action and conflict oriented.

Is there a reason the friend is blind? Does that have bearing on the story?

Is there a romantic correlation between the two? If so, I think hinting at that could also be good to get the audience interested.