As the steadfast right-hand man of District Attorney Raymond Horgan, Rozat "Rusty" Sabich finds himself embroiled in a high-stakes murder investigation that threatens to unravel both his career and personal life. The brutal discovery of his colleague, Carolyn Polhemus, in her apartment sets off a horrifying chain of events that challenge Rusty's resolve as both a prosecutor and a man confronting his own secrets.
Initially, Detective Harold Greer spearheads the investigation, but Rusty's influence quickly brings his friend Dan Lipranzer into the fold. Rusty's motivations are twofold: he wants to keep his relationship with Carolyn hidden while simultaneously distancing himself as a potential suspect. But Raymond Horgan isn't pleased with Rusty’s management of the case, especially given his complicated history with the victim.
As the political storm heats up with the upcoming election for District Attorney, Tommy Molto, now working on Nico Della Guardia's campaign, begins to dig into the investigation. As tension builds, Lipranzer finds himself removed from the case, and Greer uncovers unsettling truths about Rusty's secret affair with Carolyn, gearing up for a fierce confrontation.
Rusty turns to defense attorney Sandy Stern for guidance, but the trial only reveals fractures in his facade. A vital piece of evidence—a beer glass with Rusty's fingerprints—vanishes, casting a shadow over his innocence. Horgan testifies, committing perjury to protect Rusty, who desperately struggles to reclaim control in an increasingly chaotic environment.
The investigation takes a pivotal turn when Rusty and Lipranzer confront Leon Wells, entangled in a bribery scandal involving Judge Lyttle. It is revealed that Carolyn had played a crucial role in facilitating illegal payoffs, and Wells' confession proves a devastating blow to Rusty, pushing him further into a quagmire of deceit and betrayal. As tensions escalate, Stern’s defense strategy leans on the idea that Della Guardia and Molto have conspired to manipulate the evidence, turning the investigation against Rusty.
During the coroner's examination, it is revealed that Carolyn had undergone tubal ligation, making the presence of spermicidal contraceptive in her body a baffling revelation. Stern posits that the fluid sample could not possibly have originated from Carolyn, thus shaking the foundation of the prosecution's case. The compilation of these contradictions and the elusive beer glass ultimately leads Judge Lyttle to dismiss the charges against Rusty.
Yet this dismissal incites a fierce showdown between Rusty and Stern, with the latter disclosing damaging secrets about Lyttle’s past, including a brief encounter with Carolyn. Stern confesses that both he and Horgan were aware of Lyttle’s corruption but overlooked it for his legal prowess—a revelation that comes too late for Lyttle, who resigns immediately.
In a moment of clarity, Lipranzer reveals to Rusty the truth about the missing beer glass, which he failed to return to evidence. In a symbolic act of letting go, Rusty discards the glass into the river, symbolizing his break from the tainted investigation.
In an astonishing twist of fate, Rusty finds a small hatchet in his home, stained with blood and hair. Barbara's heartfelt confession unveils her role in Carolyn's murder, ignited by her feelings of betrayal regarding the affair. She had intentionally left clues for Rusty to discover, but she never anticipated the legal repercussions.
As Rusty navigates the ramifications of his choices, he comes to accept that Carolyn's murder will remain unsolved; prosecuting two individuals for the same crime is virtually impossible. Moreover, he acknowledges the moral complexity of justice, realizing that his own sense of guilt suffuses the narrative—there exists both a perpetrator and a punishment, rooted in his actions that ultimately led to Carolyn’s tragic end.
