Karla

Karla is depicted as torn between fear and loyalty, gradually taking part in her husband's crimes under duress. Her memory of Tammy and her own fear of Paul shape a conflicted moral stance. The narrative emphasizes the psychological hold Paul has over Karla, illustrating how trauma and coercion can normalize violence.

Paul is portrayed as a calculating predator who escalates from sexual violence to serial murder. He uses charm and manipulation to recruit Karla and coerce others into his crimes, presenting a disturbing sense of control. His framing of the acts as 'movies' underscores his detachment and entitlement.

Dr. Arnold is the psychologist conducting Karla's evaluation, probing the details of Paul's crimes and Tammy's death. He remains clinical and observant, shaping Karla's sense of guilt and parole eligibility. His sessions anchor the film's examination of responsibility and mental state.

Tammy is Karla's sister and a victim of Paul's crimes. Her death, triggered by forced drugging and rape, drives the investigation and haunts Karla's recollections. Her fate exposes the far-reaching consequences of the couple's 'movies' and the fragility of family ties.

Paul kidnaps Tina and forces her to undress on camera, holding her for days and raping her repeatedly. Karla witnesses the assault and remains afraid to intervene, illustrating the pervasive fear and coercion in the relationship. Tina's murder underscores the lethal stakes of Paul's control.

Kaitlyn is a young girl abducted by Paul and subjected to brutal rape; she is killed by Paul when she becomes a threat. The case highlights the brutality of the crimes and the danger posed by Paul's unchecked violence. Her disappearance intensifies media and police scrutiny.

Detective Morgan is part of the police response to the case, piecing together evidence from the Scarborough investigation and Paul's crimes. He faces the complexity of linking Karla’s involvement to the broader serial offenses. His work edges the narrative toward legal accountability.

Detective Steve Kirby is another investigator involved in the case, observing Paul’s violent behavior and pressing for truth during interrogations. He represents the law’s persistence in uncovering the extent of the offenses. His role helps drive the pursuit and eventual arrest.

Rape Victim #1 is depicted as a survivor whose assault is part of the crimes investigated in the film. The portrayal emphasizes the lasting trauma and the social impact of the violence. Her presence underscores the victims' experiences central to the case.

Rape Victim #2 is another survivor who anchors the narrative's focus on the brutality involved. Her experiences contribute to the overarching theme of victimization and the long road to justice. Her portrayal reinforces the human cost of the crimes.