The main character is attacked by her husband very early in the film, and a couple of characters say that he mistreated her in the past later on in the film. The past violence is not shown.
Near the beginning of the film, in the opening credits, there are several images of surgery. The images repeat themselves in the third act of the film.
Excessive as in you see broken bones protrude from broken limbs, cuts, severe facial and head trauma. Yes I would say it’s pretty gory and bloody when compared to movies not known for being gory. It’s not per say a “gore fest”, but if you’re sensitive to it I’d say to skip the movie
Bones/joints popping, multiple explosions of lightbulbs throughout film. Static noises from radios, tv’s and cell phones. Loud screaming throughout film. Gunfire off and on.
The main character has miscarried in the past (we're told but not shown) and [MINOR SPOILER] she is pregnant at the beginning of the film and miscarries after being attacked.
End of the movie has a killing spree which includes a lot of gun fire. Both by police and the killer towards the end of the spree, after escaping the station. The killer mainly uses brute force or a blade