Episode 6 of "Dexter: Original Sin" kicks off with harrowing visuals as Becca finds herself helplessly bound in a garage, while Nicky is forcefully abducted by a masked assailant, leaving her stranded and terrified. Meanwhile, Deb bubbles with anticipation for a double date she's painstakingly planned, urging her brother Dexter to behave impeccably in front of her date, Gio, and specifically, to refrain from being his usual, unpolished self. Though Harry opts not to attend, he still offers Dexter some parting advice: to keep a close eye on his sister.
Dexter then proceeds to a fresh crime scene, where the victim, a seemingly reclusive individual marked by self-inflicted wounds, lies dead. Bruises on the victim's biceps hint at a struggle, and the method of asphyxiation—a plastic bag—reveals a disturbing detail: a punctured first bag, replaced by a second one that ultimately suffocated the poor soul. The killer's delight in prolonging the agony is evident. Dexter suspects a link between this murder, the Coconut Grove homicide, and the gunshot victim from episode 2, postulating that the perpetrator is "evolving," as none of the victims were robbed, and all killings seem pleasure-oriented.
Detective LaGuerta leads the investigation and, while acknowledging the potential in Dexter's theory, finds the evidence insufficient to declare it a serial killing spree just yet.
Turbulence erupts at the police station when Becca arrives to deliver her statement, wracked with guilt over Nicky's abduction and desperate for his return. Spencer, visibly distraught, fears that officials and their families are being deliberately targeted.
Amidst this chaos, Dexter sets his sights on Levi Reed as his next target, meticulously orchestrating evidence and shadowing him. Interspersed with these clandestine activities, Dexter attends the double date, where things initially take a rocky turn. However, the evening eventually smooths over, culminating in a playful prank involving Tiffany's car after Dexter shares an intimate moment with Sophia in the restroom.
The flashbacks persist, haunting Harry as he keeps Laura in his sights as she embarks on her latest, perilous mission. At the warehouse, Laura discovers Alfredo tied up and faces a grim punishment—the loss of a finger—for her deceit and betrayal. This grim turn places Laura in a precarious position. While her cover remains intact, and she even receives a promotion, the shock of the event visibly unravels her composure.
The situation becomes even more fragile when Harry's wife, Dora, gives birth to Deb, amidst her awareness of his affair. She confronts him, demanding an end to their illicit relationship. Harry insists it's over, but we know the complexities of his entanglements run deeper, especially considering his ongoing turmoil.
Meanwhile, Dexter bides his time like a predator, seizing Levi in the dead of night. He injects him with something sinister and, ultimately, terminates his life. Parallel to this dark deed, Harry finds himself discussing the case with Spencer at the station, expressing empathy for his colleague's struggles and acknowledging the limits of control in their chaotic world.
Harry vows to rescue Nicky, but the clock is ticking. Nicky is being held captive in an undisclosed warehouse, and time is of the essence.
As the episode draws to a close, Dexter's journey to Alligator Alley is abruptly halted. The police have discovered a severed hand, marking the area as an active crime scene. Unfortunately for Dexter, Levi's lifeless body lies concealed in the trunk of his car. Oh no, the noose tightens around his neck!
