There is a lot of bloody, graphic violence in this film, but the effects usually don't look very convincing.
A man is strangled with piano wire onscreen with some blood before he falls onto...the sharp side of a staircase or whatever, which impales him onscreen with more blood. His dismembered limbs are later seen.
A woman's leg is caught in a bear trap. A little blood is shown and this is onscreen.
A man is set on fire
A woman is beheaded. This is onscreen. (Effect looks intentionally ridiculous)
A man's arm is sliced with a sword. Some blood is shown and it is onscreen.
Numerous people are seen being stabbed to death, although the killer is not shown. The results are bloody and onscreen.
A man's face and upper body are burned when a large lamp falls on him. This is onscreen and pretty disturbing.
A man is decapitated by a pane of glass. This is offscreen but we see his bloody severed head afterwards.
A sword drives all the way through a woman's torso and pins her to a wall onscreen. Some blood is shown.