I remember watching a movie on TV a few years ago where a woman was out in public, then got a threatening phone call. This stranger calling her told her not to hang up or else something bad would happen, but I don’t remember what.

Later in the movie, she ends up in a room (maybe she was kidnapped?) and a henchman of sorts is about to attack her. She then uses her medical knowledge to slice open an artery on his upper arm (meaning she’s a nurse or a doctor or something similar), which makes him bleed out within seconds. I believe she used a scalpel. She is horrified by her own action, even as she is explaining this to him while he goes down.

I’m pretty sure it’s a movie from the 2000s or 2010s. I watched a German dub of it on TV, but it’s probably American. I’ve been able to find most other movies that I watched years ago and only remember snippets of, but somehow this one is impossible to find. Perhaps I’m misremembering the movie and the two scenes I described are from two different movies, but I’m at least 85% certain they’re from the same one.

Would appreciate any help.