Embarking on a recap of the thrilling Red Swan episode 4, we find the staff immersed in a lively discussion about their beloved show, their attention momentarily diverted as Do-hyun stealthily infiltrates the control room, surreptitiously copying videos from Yong-guk's office. Narrowly escaping detection by the vigilant Lee-jin, he nimbly fabricates a tale about seeking the elusive butler, who conveniently happened to be absent.
Later, Yong-guk summons Do-hyun to his chambers, inquisitive about his meddling in his marital affairs with Wan-soo. Do-hyun promptly apologizes, and Yong-guk, feigning indifference, lets the matter slide. Retreating to his quarters, Do-hyun eagerly watches the illicit footage, where he stumbles upon a shocking revelation: Yong-guk handing over a substantial amount of money in a black bag to Kyeong-gu. Intrigued, Do-hyun's intuition suggests the sum far exceeds the norm for a mere assassination contract.
At the mansion, Wan-soo issues a command to Byeon, the butler, to reassign Jun-hee to a different chamber, leaving Chan-hee's former room untouched. This gesture is misconstrued by Chairwoman Park as a bold challenge, though she reluctantly allows the matter to lie. However, her true intentions lie in weaving a more intricate web of revenge against Wan-soo, aided by her scheming secretary, Du-o.
Meanwhile, Wan-soo strategizes with her brother, concocting a plan to dislodge Chairwoman Park from her stronghold within the foundation. She tasks him with leaking damaging information about Yong-guk's affair and his unacknowledged son, igniting a media frenzy that leaves the Hwain Group reeling. Chairwoman Park hastily convenes an impromptu meeting, warning Wan-soo against public disclosures and urging her to withdraw from the Foundation. Ta-era, Yong-guk's mistress, implores Wan-soo to quell the press, but Wan-soo remains unmoved, unwilling to shield her husband's shame.
As the company's shares tumble, Chairwoman Park and Du-o frantically search for a way out of the quagmire. Cornered, Wan-soo boldly orders her secretary to arrange a press conference for the following day, prompting concerns that this may further enrage Chairwoman Park. Amidst the chaos, Yong-min, Yong-huk's brother, watches in awe as his sibling continues to taint the family name and strain their mother's composure.
The subsequent day, Chairwoman Park cunningly arranges a meeting with a female minister, dragging Wan-soo along in an attempt to thwart her press conference plans. Yet, Wan-soo, aided by Do-hyun's ingenuity, slyly escapes the meeting. Chairwoman Park is stunned, but her shock pales in comparison to Wan-soo's bold denial of her husband's infidelity rumors in front of the world.
Wan-soo not only defies convention but also masterfully manipulates the narrative, revealing that Jun-hee is actually the illegitimate son of the late chairman, thus making him Yong-guk's brother. Her bravery in confronting her formidable mother-in-law publicly is commendable, earning her both Yong-guk's admiration and Ta-era's unbridled fury.
After the press conference's conclusion, Wan-soo trudges home, steeling herself for a confrontation with Chairwoman Park. Unflinching, she endures her mother-in-law's tirade, as the latter scoffs at her dreams of world-changing endeavors. Wan-soo counters, highlighting her relentless work ethic, surpassing even Yong-guk's, and demands that Chairwoman Park keep her meddling hands off the Wow Foundation's funds. Her stance is resolute; the Foundation is her legacy, pristine and untarnished. As anticipated, Chairwoman Park's reaction is anything but placid.
Meanwhile, Kyeong-ju chastises Do-hyun harshly for aiding Wan-soo's clandestine entry into the press conference. Do-hyun apologizes profusely, seeking full autonomy over the RF team, Yong-guk's division included, but Kyeong-ju remains unyielding.
Days pass, and Jun-hee and Ta-era take up residence in the Grand Palace. Wan-soo, however, warns Ta-era to maintain her boundaries, openly addressing her as the mistress. Ta-era struggles to find her footing amidst the staff's overt mockery. Later, Wan-soo embarks on a jog, summoning Do-hyun for company. This time, she confides in him the reasons behind her marital perseverance. Do-hyun confesses his motive in facilitating her press conference appearance—he had hoped for a divorce announcement. He inquires about her relentless protection, and through a vivid flashback, we revisit her solemn conversation with Chairman Park. Her father-in-law implored her to bide her time until a crucial truth surfaced. That truth, still shrouded in mystery, binds Wan-soo to her present, preventing her escape.
She declares that she would rather perish than live a life dictated by others' whims, her words laced with desperation. This confession stirs Do-hyun's concern, prompting him to divulge more about Ju-hyuk, his suspicion now pointing to the Hwain Group as the mastermind behind Wan-soo's assassination attempt. Wan-soo listens, disbelief etched on her face, demanding proof amidst her growing distrust.
The following dawn, Chairwoman Park insists on a family dinner at Yong-min's abode, tasking Wan-soo with delivering an exquisite wine bottle beforehand. Wan-soo initially resists, but Do-hyun intervenes, urging her compliance. At Yong-min's residence, a deliberate mishap shatters the wine, prompting Yong-min to substitute it with one from her own cellar. Jealousy simmers beneath the surface; Wan-soo's competence and Chairwoman Park's reliance on her have stirred resentment within Yong-min, who now finds herself the subject of gossip fueled by Wan-soo's recent troubles.
During the dinner, Chairwoman Park attempts to maneuver Wan-soo into assisting Young-min's family business's foray into the Chinese market. However, Wan-soo cunningly uses this as leverage, demanding Chairwoman Park's retreat from the Wow Foundation. But Chairwoman Park remains obstinate, crashing uninvited into the Foundation's event, aghast to find Wan-soo in an identical outfit. The media, however, lauds Wan-soo's style, fueling Chairwoman Park's ire. In a fit of rage, she clashes with her bodyguards, but Do-hyun swiftly intervenes, subduing her without an apology, only to draw more unwanted attention. Amidst the chaos, Chairwoman Park's fascination with him begins to blossom.
Later, Chairwoman Park summons Wan-soo, revealing a chilling truth—she has imprisoned Wan-soo's mother in a locked mental health facility, plotting to frame Wan-soo for her abandonment. Furthermore, she divulges that Wan-soo's mother's days are numbered. Shocked beyond measure, Wan-soo rushes to devise a plan to visit her mother. The episode culminates with Wan-soo's anguished entry into her mother's room, her screams echoing through the halls as Do-hyun rushes to her side.
