Just in time for Halloween, check out Vimeo’s Staff Pick Premiere of DO NO HARM directed by Roseanne Liang.

It’s the story of a truly badass woman who uses her MD, scalpel and something between raw rage and a black belt to obliterate anyone who lays a finger on her patient, even if the man on the operating table is straight-up evil.

DO NO HARM premiered in the Midnight Shorts section of the Sundance Film Festival last year and had a prodigious film festival run.

Here is the synopsis: 3am. 1980s Hongjing — In an aging private hospital, a single-minded surgeon is forced to break her physician’s oath when violent gangsters storm in to stop a crucial operation.

Vimeo interviewed Liang on the inspiration behind this film—a harrowing story involving the Hippocratic Oath that her sister, who is a surgeon, told her.

DO NO HARM is really dark and shows off that Liang’s wheelhouse is definitely in the horror genre. I can’t wait to see what she has in store next!