Tara Connelly, a thirty-year-old former art teacher, leaves Taconic Correctional Facility in New York after serving eighteen months in medium security for transporting stolen opioids across state lines. She grew up poor in Port Chester, New York, lost her mother to lung cancer at age nine, and was abandoned by her criminal father at twelve. Her older brother, Eddie, has a traumatic brain injury from a car crash their father caused, and her oldest sister, Geraldine, long ago assumed the role of family caretaker. During discharge, a guard locks Tara in a holding room without explanation. She panics and is restrained.
The hold was requested by Brian Nolan, a thirty-three-year-old detective who helped put Tara in prison and has been consumed with guilt since. His partner, Hank Doyle, is also his uncle, who raised Brian after Brian's parents were killed during an apparent robbery when Brian was fifteen. Learning Geraldine cannot pick Tara up, Brian orders her released and offers a ride home. During the tense drive, he buys her coffee and waits while she buys a LEGO set for her ten-year-old nephew, Conor, with commissary money. At the Connelly house, he offers a sincere apology. Tara responds curtly and goes inside.
Geraldine arrives hours late, sidetracked by work and shopping at a secondhand store. She shows Tara to a converted attic room rather than her old bedroom, which is padlocked. Eddie arrives with Conor and embraces Tara warmly. At dinner, Tara thanks her siblings for the $2,700 in her commissary account, but they reveal they sent only about $900. Eddie suspects Roland Shea, the drug dealer Tara transported pills for, provided the rest.
Tara and Eddie confront Roland, who denies sending the money. Brian and Hank, conducting surveillance on Roland's operation, observe the visit. Hank wants to report Tara to her parole officer, but Brian dissuades him. At home, Conor worries about Tara's smoking, and she quits on the spot. They establish a ritual: Whenever Tara feels low, Conor tells her a joke.
Employers reject Tara because of her record, and one interview ends with a business owner demanding sexual favors. At her first meeting with parole officer Doreen DaCosta, Tara learns her parole was nearly revoked over her visit to Roland's house. Eddie's defense persuades DaCosta to let the infraction pass, but DaCosta orders Tara to stop investigating the commissary money. Meanwhile, Geraldine is drowning at work after being promoted to office manager at Bertucci's Payroll Service. She has fallen behind on quarterly tax payments and lies about their status.
Tara lands a job as a graphic illustrator for Gordi Cohen and Lance Richman, two young men running a YouTube gaming channel, after her artwork from prison impresses them. Soon, her former cellmate Jeannie calls with the name on the commissary deposits: Brian Nolan. DaCosta confronts Brian and warns him to stay away, revealing that his anonymous deposits indirectly caused Tara's parole crisis. When Tara asks Brian directly, he admits the truth. She tells him she spent the money on sketch pads and pencils that helped her survive prison. As she walks away and catches his reflection watching her, she feels excitement she has not felt in a long time.
Eddie and Tara kick open the padlocked bedrooms and find both rooms crammed with hoarded items. The siblings attend therapy with Judy Horowitz, where buried resentments surface. Tara admits she was hurt by how rarely they visited her in prison. Geraldine reveals Eddie had a seizure after one visit and confesses she stayed away because she felt Tara never needed her. Geraldine agrees to continue therapy, and during later sessions Tara acknowledges for the first time how much Geraldine sacrificed, having hidden their mother's lengthy illness and taken over all household duties as a teenager.
Hank pressures Tara into a station interview about Roland's disappearance. She denies knowing his whereabouts and lies about the commissary money to protect Brian. That evening, Brian visits her room to explain he had no part in the ambush and kisses her cheek. On their first date, Tara challenges the imbalance between them: He knows her entire history, but she knows nothing about him. Brian responds by revealing his parents' murder and his belief that their deaths were his fault. They sleep together, and over the following weeks their relationship deepens, though an argument exposes tensions about the ways both remain stuck in their lives.
Geraldine secretly transfers approximately $25,000 of client tax money into Tara's old, still-open bank account, planning to return it after filing overdue taxes. Mr. Bertucci discovers the shortfall and calls the police; Hank is assigned the case. At a therapy session, Eddie tells Tara she does her family no favors by carrying their burdens alone. Tara drives home and finds Geraldine hiding in the backyard shed, where Geraldine confesses she moved the money into Tara's account. Tara realizes that if the funds are traced, they will appear under the name of a paroled felon. She flees in Eddie's truck, stopping at Conor's school to lean on their joke ritual one last time.
Tara drives to the Bronx to ask her estranged father, Bobby Connelly, for money to run. Over coffee, Bobby recounts their mother's fairy tale about the three siblings: Geraldine was the protector, Eddie was the heart, and Tara was the True North, possessing an internal compass that always found the right path but needing her siblings to reach it. He warns that running will lead to a life like his. Tara decides to stay and leaves Brian a voice mail expressing her complete trust. Meanwhile, Brian visits Andrea Leary, Eddie's ex-girlfriend and Conor's mother, whom surveillance footage has linked to Roland's operation. Andrea agrees to serve as a confidential informant. But Hank traces the money, obtains a warrant, and arrests Tara, leaving her in a holding cell overnight.
Back home, Eddie reveals to Geraldine the truth he has hidden: Tara made the drug delivery for him the night a migraine incapacitated him, staying silent to protect Eddie from prison and Conor from losing his father. Geraldine decides to confess. She and Eddie go to Mr. Bertucci, who accepts her explanation, demotes her but keeps her employed, and accompanies them to the police station to withdraw the complaint. Eddie tells Brian the full truth, and Brian finally understands that Tara's silence was never loyalty to Roland but love for her brother.
Brian shares Andrea's intelligence with the task force, securing a breakthrough in the case against Roland. He confronts Hank, who reveals he has known about Brian's relationship with Tara. After a sleepless night, Brian visits his parents' graves and resolves to forgive himself. He decides to attend the wedding of his aunt Rosemary, Hank's ex-wife, to separate professionally from Hank, and to consider leaving the force to become an advocate for people navigating the justice system. He plays Tara's voice mail for DaCosta, who agrees to an ankle monitor rather than reincarceration.
Tara is visited in the holding cell by attorney Linda Cohen, Gordi's mother, whom Eddie hired, and learns the charges have been dropped. Brian waits in the lobby and tells her Eddie confessed and will face no consequences. He hands her a cell phone and points to the window where Eddie, Geraldine, and Conor stand on the sidewalk. Brian leads Tara toward the exit to rejoin her family, echoing the morning he drove her home from Taconic but this time grounded in trust, honesty, and hope.