There are several pictures shown of women in under garmets

A woman implied to be a prostitute is seen wearing a short skirt and low-cut top that shows some cleavage

No nudity or sexual references

a girl with bikini

Many disfigured faces are shown in close shots.

Several photos of murdered victims are shown covered in blood

Two people shoot themselves in the head.

Multiple people are shot and killed.

Multiple uses of f**k, s**t, b**ch, etc.

There is one scene where a woman smokes. No other drugs or alcohol. Syringes are shown in a couple scenes but are presumably filled with blood.

This movie is very intense. There are several disturbing images including graphic suicides, murders and dead corpses covered in blood. Certainly not for those who are easily upset by horror movies.