30 dating unsub preparing or updating a will
A character with a freakish appearance, experiencing loneliness, happens to stumble into a blind person who doesn't realize that the freak is not quite human.
They strike up a friendship or even romance, and the audience learns An Aesop that blind people might be better than we are because they are quicker to recognize inner beauty.
Probably not the best choice if you’re incognito, or running for president.
Usually the deception doesn't last forever, but by the time the blind person finds out what the other "looks" like, they've already come to appreciate the person inside.
Of course, there are also the Unfortunate Implications that you'd have to be completely blind to fall for someone so ugly, or that it's okay to lie to blind people.