Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
The Sinner Season 1 Episodes
Season 1 Episode Guide
8 Episodes 2017 - 2017
Episode 1
Part I
Wed, Aug 2, 201746 mins
Cora Tannetti moves through suburban life like someone trapped behind glass. She swallows pills before sex, scrubs her home with punishing intensity, and drifts through motherhood carrying a private rot she cannot name. A day at the lake cracks the illusion apart when a song, a body, and a sudden flash of memory ignite something savage inside her. In front of families and children, she attacks a stranger with total conviction, then calmly tells his girlfriend she is safe. Detective Harry Ambrose senses the murder is not madness but collision; a hidden wound forcing Cora toward violence before she fully understands why.
Episode 2
Part II
Wed, Aug 9, 201742 mins
An unexplained public execution shatters a quiet afternoon, leaving a traumatized woman desperate for immediate administrative execution. She embraces total legal self-destruction to bury the truth, yet a persistent investigator refuses to let the file close. He uncovers a network of fabrications regarding her origin, exposing a childhood warped by toxic religious conditioning. As the husband disintegrates under the weight of sudden marital anonymity, the protagonist clings to her self-imposed martyrdom. The friction intensifies when an auditory trigger collapses her psychological defenses. Confronted with the soundtrack of her trauma, her body executes a precise, violent mimicry of her original sin, proving her mind is a hostage to an unremembered past.
Episode 3
Part III
Wed, Aug 16, 201742 mins
Following escalating institutional scrutiny, Cora Tannetti undergoes psychiatric assessment after violent behavior inside custody. Detective Harry Ambrose pushes a theory that the beach music functions as a post traumatic stress trigger, while clinicians debate her legal competence and emotional stability. As Ambrose revisits her family history, buried accounts of punishment and loss surface, complicating the narrative of addiction. Mason Tannetti reacts with anger as he confronts perceived betrayal and spirals into conflict outside the legal process. Inside custody, Cora experiences fragmented memory disruptions and mounting pressure. When confronted with evidence of drug use procedures, she cannot reproduce any knowledge, forcing a rupture in her assumed identity and pushing her toward questioning the reality of her missing time.
Episode 4
Part IV
Wed, Aug 23, 201742 mins
Harry Ambrose pushes Cora Tannetti deeper into recovered recollection work, forcing her back into fragmented impressions of Carl Taproom and the people orbiting that night. The session destabilizes her certainty, pulling Madeline Beecham into focus as a figure charged with personal friction and unresolved emotional pressure. Ambrose tracks these fragments into field investigation while Mason Tannetti breaks procedural boundaries in parallel pursuit of control through confrontation. Each thread tightens around Cora, whose internal defenses begin to crack under repetition and guided recall. The psychological terrain shifts from uncertainty into a mapped but unstable past that refuses to stay buried.
Episode 5
Part V
Wed, Aug 30, 201742 mins
A grim discovery shifts the narrative equilibrium. The state deploys a calculated bureaucratic hammer to squeeze a confession from a fractured soul, leveraging a secondary corpse to guarantee compliance. The trap tightens. Desperation fuels past sins, revealing a history of petty thievery born from a primal urge to escape a suffocating domestic prison. Squeezed by institutional pressure, the defense collapses toward a compromised plea. Meanwhile, a husband disintegrates under social judgment and maternal manipulation. A lone detective rejects the easy resolution, pushing past roadblocks into the guarded perimeter of a high society club where wealth sanitizes ancient, predatory behavior.
Episode 6
Part VI
Wed, Sep 6, 201741 mins
Detective Ambrose bends procedural limits to guide Cora Tannetti through a controlled return to a secluded estate tied to fragmented memory and unresolved trauma. Pressure builds as law enforcement closes in, forcing competing interpretations of a violent incident connected to Cora's orbit. Meanwhile Mason Tannetti moves through escalating confrontation that collides with suspicion and surveillance, pushing him into panic and unstable confession. Intercut memory sequences surface fractured intimacy and strained family bonds, reshaping how each character understands responsibility, desire, and control. The investigation tightens as emotional collapse replaces certainty.
Episode 7
Part VII
Wed, Sep 13, 201740 mins
Cora Tannetti (Jessica Biel) prepares to abandon her old life with J.D. Lambert (Jacob Pitts), but is pulled into one last night by her terminally ill sister Phoebe (Nadia Alexander). What begins as fragile familial intimacy fractures under the weight of secrecy, dependency, and emotional leverage. The sisters drift into a chaotic social orbit where manipulation and desire blur into control. As the night intensifies, Cora is drawn deeper into environments that destabilize her sense of safety, forcing her toward a psychological breaking point where memory, complicity, and survival collapse into a single irreversible moment.
Episode 8
Part VIII
Wed, Sep 20, 201742 mins
Cora Tannetti stands at the center of a case that bends memory into liability as Detective Harry Ambrose pushes deeper into contradictions that refuse clean order. What begins as fragmented testimony shifts into recovered recollection, pulling buried violence into daylight. Ambrose tracks forensic signals and hidden locations while pressure builds around a courtroom decision that feels increasingly unstable. As corroboration surfaces from physical evidence tied to Phoebe Tannetti, the narrative tightens around competing accounts of responsibility. The system edges toward a verdict shaped less by certainty and more by accumulated psychological damage and procedural constraint.
