Season 2, episode 3 has two women having sex in the background making an adult film. The women take off their bras, and breasts can be seen slightly out of focus.

No onscreen sex. Series 2 contains a prostitution theme.

A woman is almost raped in one scene. This is pretty intense.

Mentions of sex workers but we never see what they do for a living the show contains implied sex only. Nothing is ever shown onscreen.

In season 2, a central character is a young prostitute. There are references to what she does during the series, as characters try to stop her from being involved.

Every episode contains violence of some kind, with blood seen.

Violent acts shown include shooting, stabbing, beating etc.

The violence is always intense and needless.

Fuck is used 1-3 per series.

The first season has 5 uses of the word f-ck 20 uses of sh-t season 2 has no f-words 5 uses of sh-t season 3 has no f-words 2 uses of sh-t season 4 has 1 use of the f-word 1 use of sh-t 1 use of h-ll 1 use of a-s season 5 has 12 uses of the f-word 16 uses of sh-t

Shit is used a lot.

References to drugs.

This show creates a high level of psychological terror which may be deeply disturbing, especially for sensitive people.

A number of very intense scenes. Some of the scenes showing murder victims could be quite disturbing to some viewers.

Season three is violent and the first episode contain a lot of jumping scenes, it may disturb younger viewers.