If you’re going to pay money to see a movie called “Wolf Man,” you already know what you want: full moon, lots of mist, and a big, gnarly transformation scene in which a normal guy reverts to the atavistic man-beast we all know lurks within. It’s right there on the assembly instructions.

Another classic cinematic monster has been dusted off in “Wolf Man,” an R-rated Blumhouse movie which hits theaters on Friday