The third episode of The Alibi commences with Stella being hauled off to Arthur and Jacqueline's abode. In a stealthy move, Edward whispers a call to Vincent, who sprints to the house just as Arthur offers Stella a hefty sum to depart from his side. Vincent, with a declaration of love for Stella, plants a kiss on her lips to solidify his feelings. He issues a stern warning that no one will be pursuing her again and whisks her away. However, Stella hesitates, jesting that it was her dream to have wealthy parents who would bribe her with money to leave their son, a common trope in dramas.
Just then, Bea arrives at the house with Claudia in tow. Vincent cautions Claudia against picking a fight in front of Bea, knowing full well the repercussions it might bring. Seeing Bea triggers a wave of guilt in Stella for disrupting her family's harmony. As Vincent drops her off at the hospital, Stella suggests ending their arrangement and pretending they've broken up.
At the hospital, Stella encounters Detective Ricardo interrogating her sister. Katherine informs the detective that Stella had never introduced Vincent to them, fueling suspicion about their relationship. Stella explains that she avoids introducing her dates to Katherine because of her sister's disdain for her job, which would only lead to arguments.
Vincent waits patiently in the hospital's waiting lounge as Stella is still being questioned by the police. She rethinks faking a breakup with Vincent and agrees to continue their transaction on the condition that they don't interfere in each other's lives, never betray each other's trust, and he pays her ten million pesos. Vincent obliges to the deal.
Later, a deepfake video of Vincent confessing to killing Walter goes viral, causing his father to fume in anger. The patriarch declares that he won't let the scandal tarnish his company and the Cabrera group's reputation. Arthur vows to shut down all Cabrera news. Vincent feels a sense of desperation and heads to Stella's club, where he gets drunk. Stella admonishes him that getting drunk won't solve the issue.
A cunning individual like Vincent should instead remain calm and figure out how to solve the problem. He can't clear his name if the police are still suspecting him. Stella urges them to find a new suspect, and her words ignite an idea in Vincent's mind.
With Vincent under the influence of alcohol, Stella generously offers to be the wheelman, and they set off for Walter's abode. As they approach, Vincent spies someone lurking around the perimeter of the house. Grasping his firearm, he instructs Stella to wait in the car while he confronts the figure within. In Walter's bedroom, Vincent discovers drugs and realizes that Walter was a drug user. Following close behind, Stella hears commotion downstairs, prompting Vincent to ask her to stay put.
Vincent gives chase to the hooded figure as it exits the house. A scuffle ensues, and the gun inadvertently goes off. Vincent subdues the individual, only to be shocked to discover it's Claudia. Seeking relief from withdrawal symptoms, Claudia had come to Walter's house in search of pills; Walter had been her supplier, and it's revealed that she had previously undergone rehab.
Vincent pours the pills down the drain, triggering Claudia's hysteria. She loses consciousness and eventually fades away. A neighbor hears the gunshot and knocks on the door. The police arrive soon after, and Stella and Vincent had already carried Claudia back home.
As they assist in cleaning up Claudia, Bea walks into the room. Stella offers to keep Bea company while Vincent tends to Claudia. Meanwhile, Ricardo and his partner arrive at Walter's apartment, finding a bullet casing and a drop of blood on the floor.
Later that night, at Vincent's house, he comes to bid Bea goodnight and leaves her in Stella's capable hands. Stella answers Bea's queries about her parents, reassuring her that they care for her deeply. She even offers to give Bea her number so that Bea can reach out to her if Vincent doesn't answer.
The next morning, Vincent and Stella depart, with Vincent sharing his story of being kicked out of his home. Stella learns that beneath Vincent's tough exterior lies a heart that cares deeply about Bea. He compromised when Claudia evicted him because he didn't want them to continue their bitter fight.
He confides in Stella his adoption status and divulges the intimate details of Walter and Claudia's affair. Stella, in turn, opens up about her childhood, where she was an orphan without a father, and her mother left her to fend for her siblings at a young age. When Stella learns that Vincent knew about the affair, she suspects that he could have been the one to take Walter's life. She asserts that she has been burned so many times that she finds it difficult to trust anyone easily.
Vincent invites Stella to his place, urging her to quit her job at the club for her own safety. He offers to compensate her financially for her time. As the doorbell rings, it becomes evident that someone has tipped off Ricardo and his partner about Vincent's whereabouts. They arrive at the house to investigate the gun and blood found at Walter's residence. Vincent asserts that he has a permit to carry a weapon, but it was stolen. He shows them the safe from which the gun was taken, insisting he has no idea who could have taken it.
Vincent and Stella are taken to the station for questioning. Ricardo is eager to pin the murder on Vincent, but his lawyer produces a report that shows Vincent had reported the theft. The partner presents a forensic report that matches the casing found at Walter's house with the gun registered to Vincent, and the blood belongs to him.
Vincent admits that he went to Walter's house because the housekeeper called him to check if anything was stolen. When Ricardo calls the housekeeper, they confirm Vincent's story. However, Ricardo still believes that Vincent could have paid the housekeeper off since he has fabricated many news stories.
Meanwhile, Claudia arrives at the police station with a teddy bear, revealing that Vincent had planted a spy camera in it, implying he knew about the affair with Walter. Claudia also admits to the affair, saying that Vincent neglected her and Walter saved her from his neglect.
Ricardo and his partner return to interrogate Vincent once again, convinced that he is the murderer. However, things take an unexpected turn when Vincent admits that he saw Claudia and Walter having an affair. According to the law, Vincent could have walked into that room and killed them both after catching them in the act, but he would not be held accountable for it. Nevertheless, he clarifies that he is not a murderer and becomes angry at the detectives, warning them to stop pursuing him unless they have conclusive evidence.
Outside the police station, Vincent confronts Claudia, knowing she came to the police out of fear that he had evidence of her affair. She was willing to sacrifice him for her reputation, further proving Vincent's decision to agree to the divorce. Vincent tells Claudia that he will ensure Bea is taken away and not left to suffer with Claudia.
Stella and Vincent feel as though everything is a setup, with an unseen hand manipulating everything. There is a possibility that Claudia is involved or someone is backing her up in this elaborate scheme.
Claudia confronts Matthew, her words dripping with conviction as she reveals that Vincent has been sacrificed to take the fall for Walter's demise. The air thickens as it's revealed that Matthew, with his sights set on the CEO position at Cabrera News, was the mastermind behind the deepfake video and the informant planted among Vincent's staff. He even coaxed Claudia into reporting the teddy bear incident to the police. Claudia queries him with a fierce glance, asking if his hunger for Cabrera News has driven him to send his own brother to prison for a crime he didn't commit. Matthew counters, his tone cold and calculated, that Vincent is a rogue who had taken what was rightfully his and this situation presented an ideal opportunity to regain everything. Unruffled by Walter's death, he reasons that the Cabrera family excels at keeping their scandals under wraps.
As the episode draws to a close, Stella arrives home, her lips tinted with lipstick that resembles blood. Her thoughts drift back to the fateful day of Walter's murder. It emerges that Stella was in a relationship with Walter, even confessing her love for him. She had arrived at his villa after a confrontation with Vincent for his lies when Walter, in a moment of desperation, tried to force himself on her. In a flash of rage, Stella hit him on the head with a blunt object, causing him to fall to the ground. She fled the room, her conscience burdened by the deed she had just committed.
