The Mother-in-Law's Secret

By accident he finds the private shame his mother-in-law had kept shut away. She is his wife's mother, an adult under the same roof, and that secret was the lock on a door the family pretended was not there. After he sees it, she cannot treat him as only the man who married her daughter, and he cannot call himself uninvolved. / His wife has not been told. Two people now hold knowledge that would break the marriage if it were spoken aloud. Every dinner at the shared table becomes a test of who will look away first, and which of them will decide that keeping the door shut is no longer worth it.