In 1939, nestled within the eerie ambiance of the Bodega Bay Inn in California, an elderly puppeteer named André Toulon brings his masterful creation, Jester, to life. Anticipating a bright future for his artistry, Toulon’s plans take a grim turn when two Nazi spies approach him, intent on uncovering his secrets. Luckily, his animated puppet Kahn warns him of the impending danger, leading Toulon to securely hide his living puppets in a concealed compartment. Just as the Nazis invade his sanctuary, Toulon makes the heart-wrenching decision to end his life, sealing the fate of his creations.
Fast forward fifty years to 1989, where we find ourselves in the same ominous locale, now draped in the shadows of time. A quartet of psychics is summoned by an enigmatic figure from their past—Neil Gallagher. The psychic line-up includes the introspective Professor Alex Whitaker, who is pulled into this web of intrigue through a vivid nightmare, alongside the intuitive Dana Hadley who receives a chilling death premonition. They are joined by psychic researchers Frank Forrester and Carissa Stamford, who arrive by methods yet to be disclosed. Together, they embark on a journey to the Bodega Bay Inn, where Neil has recently established a new life with his wife, Megan, only to learn of his tragic demise by apparent suicide.
Upon arrival, the psychics find unsettling clues left behind by Megan regarding Neil's passing. As Dana probes deeper into the mystery, she conducts a grim test to ensure Neil's death, stabbing his lifeless body with a long pin. The tension escalates as the psychics settle into the inn, plagued by unsettling visions of Neil that seem to defy the boundaries of the grave. At a dinner that underscores their mounting dread, Dana provokes Megan, prompting her to storm away from the table, just as the vengeful animated doll, Pinhead, emerges from Neil's casket—a disquieting harbinger of chaos.
In pursuit of Megan, Alex dives into their convoluted past with Neil. The group reflects on their individual abilities: Carissa, a perceptive psychiatrist, can visualize an object's emotional history; Dana excels in locating lost individuals and items, while Alex possesses the uncanny ability to foresee future events through dreams. The backstory spills into darker revelations—Neil, infatuated with alchemical secrets, unearthed the ancient art of reanimating figures that ties back to the mysterious Toulon. Feeling betrayed and driven by a sense of justice, the psychics are resolute in reclaiming Toulon's lost secrets and confronting their dark past together.
However, as night descends, the shadows come alive. The housekeeper, Theresa, falls victim to a brutal attack by Pinhead, realizing Dana's dire predictions. Meanwhile, Megan faints in horror upon discovering Neil's lifeless body slumped in a chair. Alex leaps to her aid, but as the group attempts to conceal the corpse back in its casket, other terrors are unleashed. Blade, pursuing a dark agenda, discovers ancient protective spells within Alex and Dana’s quarters before moving onto Carissa and Frank’s bedroom, where chaotic passion is interrupted by violence as Tunneler drills into Carissa's face and Leech Woman drains Frank's life through blood-sucking leeches.
The harrowing events push Dana to confront her own fate as she unexpectedly finds herself face-to-face with Gallagher's corpse, only to be attacked by the relentless Pinhead, resulting in a vicious injury. Despite her desperate attempts to evade danger, Blade intercepts her, sealing her tragic destiny. As the remaining psychics grapple with the unfolding nightmare, Alex is tormented by more nightmares and finds solace in Megan, who shows him Toulon's diary—a harrowing testament to Neil’s obsession with discovering the dark art of reanimation.
Forewarned by visions of Neil, the group plots their escape just as they discover the horror: the bodies of Dana, Frank, and Carissa laid lifeless at the table, surrounded by the newly resurrected Neil. With a chilling revelation, Neil confesses to having employed Toulon's arcane method for his self-reanimation, fueling his insatiable thirst for eternal life. Yet, his abject disdain for the puppets leads to a violent backlash as they rebel against him: Tunneler viciously drills into his legs, Blade forcefully pins him down, Leech Woman executes a grotesque act of regurgitating a leech into his mouth, and Pinhead delivers the lethal blow, snapping Neil's neck.
As dawn breaks, the inn bears witness to the aftermath of this supernatural upheaval. With heavy hearts, Megan bids farewell to Alex and as she ascends the staircase, an unexpected marvel occurs—Dana’s beloved stuffed dog, Leroy, springs to life, hinting at the fragile ties between life, death, and the secrets that dwell within the shadows of the Bodega Bay Inn.
