A female character is seen undressing, but all we see is a bra and her panties.

There's a scene where a girl goes through brain surgery. You can see the skin and skull get cut open, with exposed brain. Very bloody. At one point, the brain starts to swell out of her skull. Very graphic.

A girl's throat is cut open with a razor

A guy has his face pulled into a moving motorcycle wheel after his scarf was thrown in. We see a brief image of blood spray against his face

A guy's neck is crushed by weight lifting appartus and blood sprays everywhere

A guy gets stabbed in the stomach with garden shears. Blood is shown all over his stomach and the weapon

A guy has a Shish Kebab shoved into his mouth and blood pours out

A woman drowns

A guy is beaten to death with fire poker.

A man is stabbed through the throat and has it slit

A girl stabbed in the gut. Blood pours out

Several uses of "fuck", "shit", "asshole", and "bitch" is also used.