What's the seventh basic movie idea?

While searching (unsuccessfully) for the source of the wisdom that all fiction boils down to two basic plots—either “someone takes a trip” or “a stranger comes to town”—I ran across this list of seven basic movie ideas:

The Way-Too-Different Partners
The Rag-Tag Bunch of Misfits Prove Everyone Wrong
The Unconventional Hero Teaches Folks a Thing or Two
The Road Trip Where Everyone Is Changed
The Unrequited Love Story
The Monsters Are Coming!

Sounds good to me. Unfortunately the person who posted the list could remember only six. Do you know what number seven is?

I have seen any number of compilations of the six or fourteen or thirty-six or hundred and one basic plots of novels through the ages. That’s not what this question is about. This question is about the missing seventh movie plot.