Les Hackel, portrayed by James Marsters, leads a life marked by mundane struggles and deep-seated conflicts, exacerbated by his overbearing mother and a recent breakup with his girlfriend Allison. One fateful evening, while engaged in an online chat with his best friend Danny, played by Jordan Peele, an unsettling revelation surfaces: both friends have bombs implanted in the napes of their necks.
As Les arrives at Danny's residence, a dark confrontation unfolds. Danny, clutching a gun, grapples with his intentions and ultimately hesitates, leading to a catastrophic detonating of his bomb, resulting in Danny's death. Following this chaos, Les receives a cryptic message urging him to open a suitcase at his workplace, accompanied by a harrowing threat. Upon compliance, the suitcase releases toxic gas, tragically claiming the lives of his coworkers while Les narrowly escapes without harm.
His journey continues at Diamonds and Purrls, a nightclub where he meets Sal Cheek, a struggling comedian portrayed by the seasoned Sid Haig. Similar to Les, Sal also carries a bomb in his neck, and their bond deepens as they are sent to a suburban residence with a fatal directive to eliminate the family residing there. The grim task leads to betrayal as they receive a message instructing them to kill one another. In a shocking turn of events, Les resorting to violence decapitates Sal using a shovel.
Les’s fate transforms further when he is apprehended by Officer Dennis, played by Patrick Cavanaugh, and interrogated by the steely Police Chief Richter, brought to life by Christopher McDonald. As Richter pushes for a confession regarding undisclosed crimes, Les endures a harrowing electrocution process via a device dubbed "The Confessional." He awakens disoriented on the roadside, clutching a slip of paper etched with the single word “think.”
In the ensuing chaos, Les meets Clive, an abrasive Australian played by an unmentioned actor, and the two are coerced into robbing a convenience store. The heist takes a treacherous turn when Clive knocks Les unconscious and absconds with the loot, leaving him bound in the warehouse. Shortly after, Chelsea, portrayed by Hana Mae Lee, arrives, having escaped an assailant. Their connection grows as they flee to the site of the earlier murder, prompting Chelsea to persuade Les to conceal the victims' bodies. During this gruesome process, Les notices peculiar barcodes on their necks that hint at a sinister, orchestrated plot.
Les's turbulent journey unfolds further with a summons to meet Mr. Salk, characterized by Robert Englund, an obsessively tidy individual. The duo is compelled to dispose of several corpses, revealing heart-wrenching news that one of the deceased is Allison. After Mr. Salk falters in their grim task, his implanted bomb detonates, leaving Les reeling from the loss.
In a surreal moment, Les and Chelsea come across a recognizable tune emanating from Sal's lifeless body. Upon investigation, Les discovers a USB drive hidden within Sal's remains, containing a bizarre combination of hieroglyphs and binary code. This leads to an unsettling glimpse into a hellish landscape, where a colossal alien entity lies in wait. As a peculiar song resurfaces, Les suspects he too may have secrets embedded within him, fueling a desperate attempt to self-mutilate, which Chelsea swiftly halts.
Les's next move to consult his doctor ends with him being institutionalized in a psychiatric facility, where he meets Nurse Victoria, whose role initiates a chilling exploration of sinister operations. Unconventional procedures involving bomb implantation highlight the dark underbelly of the institution, as Les becomes increasingly entangled in a conspiracy that houses alien-human hybrids.
Eventually, Les finds himself enveloped in the bizarre occurrences centered around "The Colony," a location rife with inhumane practices. With a clear sense of urgency, he urges Victoria to destroy the alien eggs they've witnessed—yet a miscalculation leads to an unexpected attack on her before he manages to escape.
The narrative crescendos with a return to an abandoned amusement park, LA LA Joyland, a site rich with childhood memories for Les. Here, an encounter with Clive culminates in a deadly showdown, culminating with Les overpowering Clive.
As the story meanders back to the present, Les faces Chelsea, now also implanted with a bomb in her neck as compulsion drives her towards violence. However, through an adrenaline-fueled act, he deftly removes the stitches anchoring the device, allowing them both a chance to escape the clutches of impending doom. Their journey transports them to the sanctuary of Les's childhood home, where a shocking discovery reveals his mother concealing a brood of alien hybrids. This realization spirals into a frenzied confrontation, leading Les to murder his mother in a fit of rage and set the garage ablaze as an act of resolute closure.
Tr agically recoiling from the chaotic confrontation, Les is apprehended once more and brought before Chief Richter. Under the relentless pressure of "The Confessional," a buried memory resurfaces: a drunken night that irrevocably altered his path when he fatally collided with a biker. With the truth finally unveiled, Richter grants Les his freedom, while Chelsea's survival becomes a beacon of hope. Their connection deepens in a heartfelt reunion, where Richter hints at the necessity of confronting the consequences of Les's actions. Their narrative concludes with a tender moment—a kiss shared amidst the echoes of their harrowing experiences, leaving Les in the solitude of his bedroom, preparing to confess his transgressions to the authorities as the haunting past lingers ever closer.
