The unnamed Masked Axe Killer (Fotini Patris) is a villainess from "Take the Stairs," a short film from Crypt TV (release date June 15, 2017).
The film has an unnamed couple running from one of the killers, with the male half of the couple already wounded. At that moment, a man in a mask appears and stabs the boyfriend to death, while the girlfriend escapes in an elevator. She sees a message inside the elevator that says, "Next time, take the stairs," and when the doors open, she encountered the aforementioned female killer, who was donning a mask and wielding an axe. The villainess walked closer to the young woman and killed her with the axe at the very end of the film.
