New movie being filmed in Montara?

There’s quite a few trucks, a shuttle bus, a trailer with living quarters, etc. parked between 4th and 6th on Hwy 1, and it looks like they are filming in the Borsini-Burr compound.  Does anybody have any idea what they are shooting?  I’ve been out of town, but this is at least the second day (night, since they are shooting now) of activity.