Film crews have been working studiously at Ernest McBride High School this month on a production for an Amazon film with the working title “Nocturne.” If it’s a mystery, it’s a thus-far unsolved one so far as neither the school’s principal nor the school district’s Ron Hoppe, who oversees film production at LBUSD schools, seems to know an awful lot about the film.

Principal Gonzalo Moraga says it’s about students in a performing arts high school and that the production company has a reputation for working with minority and women film producers.

If you  don’t mind a little speculation, we’re going to guess that the production comes from Jason Blum’s Blumhouse Productions—the signs that point the direction to the high school for crews to follow, read “BHJ,” and the company has an eight-picture deal with Amazon.

As for working with minorities, the company’s credits include Jordan Peele’s “Get Out” and Spike Lee’s “BlacKKKlansman.”

If in fact the McBride project is a Blumhouse production, we fear for the lives of our fictional performing arts high school. Otherwise, maybe just a “Glee” reboot.

Hoppe says the filmers have, like the real-life students, been taking the weekends off and on schooldays have been working in unoccupied classrooms, the gymnasium and other locations around the school. The crews began working on Sept. 17 and they will be on campus through Oct. 2.