
Relentless
Sam Dietz, a New York cop recently reassigned to Los Angeles, joins the hunt for a serial killer who seemingly picks his victims at random from the telephone directory - but the closer he gets to cracking the case, the more personal the stakes become.
The film earned $7.0M at the global box office.
Plot Structure
Story beats plotted across runtime


Narrative Arc
Emotional journey through the story's key moments
Story Circle
Blueprint 15-beat structure
Arcplot Score Breakdown
Weighted: Precision (70%) + Arc (15%) + Theme (15%)
Relentless (1989) reveals precise narrative architecture, characteristic of William Lustig's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 1 hour and 32 minutes. With an Arcplot score of 6.8, the film balances conventional beats with creative variation.
Characters
Cast & narrative archetypes
Sam Dietz
Buck Taylor
Bill Malloy
Carol Dietz
Main Cast & Characters
Sam Dietz
Played by Leo Rossi
A dedicated LAPD detective tracking a sadistic serial killer through Los Angeles.
Buck Taylor
Played by Judd Nelson
A charismatic but psychopathic serial killer who targets random victims without remorse.
Bill Malloy
Played by Robert Loggia
Sam's experienced partner who helps investigate the serial murders.
Carol Dietz
Played by Meg Foster
Sam's supportive wife who deals with the strain of his dangerous work.
Structural Analysis
The Status Quo at 1 minutes (1% through the runtime) establishes Detective Sam Dietz arrives in Los Angeles with his pregnant wife, ready to start fresh at the LAPD. He's eager, optimistic, and ready for a clean slate in a new city.. Of particular interest, this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 11 minutes when Buck Taylor commits his first murder in LA, shooting a random victim. The killing spree begins, disrupting the city and setting Dietz's investigation in motion.. At 12% through the film, this Disruption aligns precisely with traditional story structure. This beat shifts the emotional landscape, launching the protagonist into the central conflict.
The First Threshold at 23 minutes marks the transition into Act II, occurring at 25% of the runtime. This reveals the protagonist's commitment to Dietz volunteers to take lead on the serial killer case, fully committing despite his wife's pregnancy and his newness to the department. He crosses into the hunter role, making it personal., moving from reaction to action.
At 46 minutes, the Midpoint arrives at 50% of the runtime—precisely centered, creating perfect narrative symmetry. Of particular interest, this crucial beat Dietz identifies Buck Taylor as the killer and gets close to capturing him, but Buck escapes. False victory turns to defeat—they know who he is but he's still free and now knows he's being hunted. The stakes raise dramatically., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 69 minutes (75% through) represents the emotional nadir. Here, Buck targets Dietz's family directly, threatening his pregnant wife. Dietz's worst fear is realized—his obsession with the case has put his loved ones in mortal danger. Everything he tried to protect is now at risk., illustrates the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Second Threshold at 74 minutes initiates the final act resolution at 80% of the runtime. Dietz discovers Buck's psychological weakness—his need for his father's approval. This insight, combined with renewed determination to protect his family, gives Dietz the clarity to set a trap and end this., demonstrating the transformation achieved throughout the journey.
Emotional Journey
Relentless's emotional architecture traces a deliberate progression across 15 carefully calibrated beats.
Narrative Framework
This structural analysis employs structural analysis methodology used to understand storytelling architecture. By mapping Relentless against these established plot points, we can identify how William Lustig utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish Relentless within the crime genre.
William Lustig's Structural Approach
Among the 3 William Lustig films analyzed on Arcplot, the average structural score is 6.8, demonstrating varied approaches to story architecture. Relentless takes a more unconventional approach compared to the director's typical style. For comparative analysis, explore the complete William Lustig filmography.
Comparative Analysis
Additional crime films include The Bad Guys, Rustom and The Whole Ten Yards. For more William Lustig analyses, see Maniac, Vigilante.
Plot Points by Act
Act I
SetupStatus Quo
Detective Sam Dietz arrives in Los Angeles with his pregnant wife, ready to start fresh at the LAPD. He's eager, optimistic, and ready for a clean slate in a new city.
Theme
A veteran detective warns Dietz: "Sometimes the job takes more than it gives." The theme of obsession and the cost of justice is introduced through a world-weary colleague.
Worldbuilding
We meet Sam Dietz adjusting to LAPD culture, his pregnant wife's concerns about his work, and Buck Taylor's twisted psychology as a killer seeking his father's approval through murder. The two worlds are established in parallel.
Disruption
Buck Taylor commits his first murder in LA, shooting a random victim. The killing spree begins, disrupting the city and setting Dietz's investigation in motion.
Resistance
Dietz debates how deeply to commit to this case. His wife wants him home, the department politics are difficult, and he's the new guy. He partners with veteran Bill Malloy, learning LAPD procedures while Buck continues killing.
Act II
ConfrontationFirst Threshold
Dietz volunteers to take lead on the serial killer case, fully committing despite his wife's pregnancy and his newness to the department. He crosses into the hunter role, making it personal.
Mirror World
Dietz's relationship with his wife deepens as she confronts him about his obsessive tendencies. She represents the life and normalcy he risks losing, mirroring the theme of what justice costs.
Premise
The cat-and-mouse game unfolds. Dietz uses detective work to track patterns while Buck continues his spree, getting bolder. We see both hunter and hunted in action, the premise of psychological thriller warfare.
Midpoint
Dietz identifies Buck Taylor as the killer and gets close to capturing him, but Buck escapes. False victory turns to defeat—they know who he is but he's still free and now knows he's being hunted. The stakes raise dramatically.
Opposition
Buck becomes more dangerous and unpredictable, targeting people connected to the investigation. Dietz's obsession grows, straining his marriage. Buck stays one step ahead, and the pressure intensifies on all fronts.
Collapse
Buck targets Dietz's family directly, threatening his pregnant wife. Dietz's worst fear is realized—his obsession with the case has put his loved ones in mortal danger. Everything he tried to protect is now at risk.
Crisis
Dietz faces his dark night, confronting whether his pursuit of justice is worth the cost. His wife is terrified, his career is on the line, and Buck seems unstoppable. He must find new resolve.
Act III
ResolutionSecond Threshold
Dietz discovers Buck's psychological weakness—his need for his father's approval. This insight, combined with renewed determination to protect his family, gives Dietz the clarity to set a trap and end this.
Synthesis
Dietz uses Buck's psychology against him, drawing him into a final confrontation. The finale builds to a tense showdown where Dietz must use both his detective skills and personal stakes to stop Buck permanently.
Transformation
Dietz returns home to his wife and newborn child, forever changed. He's proven himself as a detective but understands the cost. The final image shows him holding his child—a protector who knows what he sacrificed.




