Law & Order: Special Victims Unit
This report covers the series as a whole across all 28 seasons. SVU is a long-running police procedural built entirely around the investigation of sexually based crimes, and virtually every episode engages directly with rape, child abuse, or related violence at a level that is strong across the run.
Episodes to know about
Each episode's central case almost always involves rape, sexual assault, or child sexual abuse described in verbal detail by witnesses, victims, and detectives; this is the baseline content level of every season.
A main character goes undercover in a women's prison and is nearly orally raped by a prison guard before being rescued; one of the most explicitly depicted near-assault scenes in the series.
A multi-episode arc (the William Lewis storyline) in which a serial rapist abducts, restrains, and terrorizes a main character; widely regarded as the most graphically violent storyline in the show's history.