Darkness: Those Who Kill (2019) Parents Guide: Is the series OK for kids?

This season includes strong sexual themes. There are implied sexual encounters, and the killer's motives are rooted in past sexual abuse, which is discussed and alluded to in disturbing detail. A character actively seeks out sexual encounters in clubs, and one scene depicts an intimate act (no nudity), followed by a discussion of its emotional impact. The pervasive theme of sexual abuse is central to the killer's backstory and methods, though explicit on-screen depictions are rare; the focus is more on the…

The season contains strong violence, including depictions of murder victims with visible injuries and blood (though not always overtly graphic gore). There are intense physical confrontations, including beatings, and scenes depicting the apprehension of violent individuals. Flashbacks or descriptions of past physical abuse, including child abuse, are present. A man is shown being punched repeatedly, resulting in a bloody face.

Frequent strong language is present throughout the season, including multiple uses of 'f***' and 's***', particularly during stressful or confrontational scenes involving police and victims' families. Other profanities are also used regularly to express frustration or anger.

The season explores several severe themes, including serial murder, torture, extensive psychological manipulation, intense grief, and unresolved trauma, specifically child sexual abuse. The narrative delves into the psychological impact of violence on victims' families and on the profiler herself. Revenge, betrayal, and the complexities of human evil are also prominent.