"Thirty Days Hath September" somewhat resembles "Death in the Back Seat," also available as eBook from Book Revivals Press. In both mysteries, the victim is a visitor from New York City, and both take place in rural New England. But "Thirty Days Hath September" is different in that the narrator is the man, the husband of the couple that gets involved with the local police seemingly determined to pin the murder on them. This is typical of Disney who sees the police as made up imperfect human beings, often trying to pin crimes on innocent people.
"Thirty Days Hath September" was written in collaboration with George Sessions Perry, a once-famous mainstream writer, known for both fiction and non-fiction.