Episode 1 of "Two Graves" unfolds with an eerie prelude: an elderly woman, Isabel, arduously dragging a lifeless form towards the chilling embrace of her freezer. Scene transitions to a serene afternoon by the sparkling pool, where Isabel and her vivacious granddaughter, Veronica, share laughter and leisure. Their bond deepens further as they engage in a piano session, culminating in Isabel presenting Veronica with a pair of lush green earrings, a gesture steeped in affection.
With the day waning, Veronica, affectionately known as Vero, sets off to prepare for the town's bustling fair, vowing to her father to return by three. She lends a helping hand to her sister with her makeup, her mind already wandering to the fun awaiting her. At the fair, Vero reconnects with her friend Marta and, on a whim, accepts a ride from a random stranger.
The subsequent day dawns with worry knitting Antonio's brow as he receives a call from his mother inquiring about Vero. Realizing his misunderstanding, Antonio alerts Isabel, who promptly contacts Lupe. The revelation that Vero hadn't returned home the previous night sets off an urgent manhunt, with Sergeant Zaera at the helm. Marta's identity as the daughter of mafia boss Rafael introduces a layer of intrigue, while Antonio harbors suspicions towards Rafael but distrusts Zaera.
A week passes, and the girls' disappearance gains traction in the media. Police scrutiny unearths security footage capturing the girls thumbing a ride with Jonas Herrera. Jonas is promptly apprehended but remains a dead end; he claims to have dropped them at the Los Penenos trail. An exploration of the area uncovers a grim trail of blood and Vero's soaked jacket, fueling despair.
Meanwhile, a grim discovery by a group of fishermen casts an even darker shadow—Marta's body, retrieved from the The merciless sea Her funeral, a poignant affair, only deepens Isabel's anxiety over Vero's fate. Sergeant Zaera, determined and compassionate, vows to bring Vero home and grant her family the closure they so desperately seek.
Two years have elapsed, yet the police remain in search of answers, with Vero officially still missing, her body never having been recovered. The media relentlessly pursues the narrative, yearning to spark broader public awareness. Antonio strives to be present for Lupe and push forward, whereas Isabel clings to prayer, yearning for clarification. The announcement of a new police sergeant assuming the case ignites a flicker of fresh hope within her. Antonio, convinced the police are wrapping up the investigation, urges Isabel to release the grip of the past. Unable to heed her son's counsel, Isabel confronts Zaera at the precinct.
With the absence of fresh clues, Zaera prepares to close the file. Isabel suspects Zaera's reluctance stems from fear of Rafael, but she stands undeterred. Seeking more light, she visits Rafael, inquiring if he possesses undisclosed insights into the mystery. Given his sphere of influence, she believes Rafael holds knowledge beyond the police's reach. Sadly, even Rafael finds himself at a deadlock. However, akin to Isabel, he persists in his quest for answers. Frustrated by her fruitless conversation with Rafael, Isabel storms away.
Determined, Isabel concocts a plan to persuade the authorities to reopen the case. Her focus wavers from her piano lessons with Beltran, shifting instead to meticulously clipping newspaper articles. Ceferino, a smooth-talking suitor, visits, attempting to woo her under the pretense of helping with her garden. Predictably, Isabel dismisses him promptly.
During dinner with Lupe and Antonio in the evening, they discuss Lupe's grades, striving to motivate her academic improvement. Subsequently, Antonio and Isabel engage in a heated argument over Antonio's desire to move past the tragedy. On her journey home, Isabel notices Jonas, now working as a food deliveryman for a local eatery.
The following day, Zaera pays Isabel a visit to confront her about a mischievous prank. She had clipped a newspaper article and dispatched a letter to the police, falsely claiming new information on Vero's case. Zaera swiftly deduced Isabel's involvement, being the sole individual who still purchases newspapers and pens letters on them. Isabel reproaches her for neglecting her granddaughter's case.
In the ensuing days, Isabel repeatedly attempts to order from Jonas' restaurant, hoping to encounter him during a delivery. After several unsuccessful tries, she inquires about Jonas from one of the delivery personnel, who informs her of his additional job at the port.
Isabel tracks down Jonas and launches a fierce attack on him at his abode. Jonas, with superior strength, subdues her and reluctantly agrees to unravel more about that fateful night. He reveals that Marta had been teasing Vero about the emerald earrings she donned in the car, a detail that adds a touch of normalcy to their otherwise chaotic evening. He further mentions that Rafael had once subjected him to brutal torture in a desperate quest for answers, mirroring Isabel's current aggression. Yet, Jonas claims ignorance about what transpired after depositing the girls at the Los Penenos trail.
The subsequent day, Beltran arrives for his scheduled piano lessons, oblivious to the storm brewing within Isabel. He notices her off-kilter demeanor and remarks on the striking similarity between the earrings she wears and those adorned by Vero. Isabel, feigning exhaustion, excuses herself momentarily to prepare coffee, her true intentions concealed beneath a veneer of normalcy.
Once Beltran succumbs to the drugged coffee and drifts into slumber, Isabel binds him securely. She waits patiently for him to regain consciousness, her eyes burning with urgency as she prepares to interrogate him about Vero's fateful night. Beltran's knowledge of Vero's earrings can only mean one thing: he saw her after Jonas had left them at the trail.
Initially defiant, Beltran's cooperation crumbles under the weight of Isabel's relentless interrogation backed by subtle torture. He confesses to being with Vero and Marta at an exclusive gathering near Los Penenos trail, where the girls were allegedly paid to entertain male guests. His narrative descends into a grotesque tale of sexual exploitation, detailing how he slept with both girls and witnessed their degradation at the hands of other men. He admits to last seeing Vero in the company of Carlos Raen, a prominent news anchor.
As Beltran continues to mock the girls' innocence, Isabel's rage reaches a boiling point. With a hammer in hand, she unleashes a brutal assault, pounding his head repeatedly until he ceases moving. Only when Beltran's lifeless body lies still does Isabel's fury subside, replaced by a chilling realization of her own actions.
