Dr. Vozáb decides to track down a place where the legend behind the novel The Castle of Otranto might have truly happened, convinced it rests on a real event. He travels through history and ruins, and when he arrives at the Czech castle Otrhany, he notices striking similarities between the crumbling stone and the castle described in the book. These parallels fuel his belief that Otrhany could be the very fortress the tale was built around, a theory he recounts with careful detail and a sense of quiet urgency. His quest unfolds against a backdrop of dusty archives, faded maps, and the slow, patient work of cross-referencing legends with physical remains. The journey is less about sensational revelation and more about the method—the patient piecing together of clues, the way a landscape can seem to echo a story long after the last page is closed.
In parallel, a television reporter follows Vozáb’s trail, and during a televised interview, he presses Vozáb to translate his research into a narrative that viewers can grasp. The interviewer’s questions push Vozáb to articulate not only the concrete similarities he has found but also the broader implications of linking fiction to fact. The exchange becomes a dialogue about belief, memory, and the power of place to shape our understanding of history. As the camera rolls, the two men test the boundaries between documentary inquiry and storytelling, inviting the audience to consider how much of a novel’s world could be rooted in real geography, political intrigue, and human motives that echo across centuries.
The film also features a vivid animated interlude that retells a portion of the original book’s events. The animation, brought to life by Xenie Vavreckova, presents a cascade of dramatic moments from the tale: the moment when Conrad, the young heir of Lord Manfred, is crushed by a giant helmet on his way to marry Isabela; Manfred’s desperate decision to wed Isabela himself after losing his heir; Isabela’s fear and flight; Manfred’s relentless pursuit until a colossal knight blocks him and Isabela is saved by Theodore. The sequence continues with Theodore’s imprisonment by Manfred and Isabela’s hidden steadfastness, then shifts to a knight from another realm who arrives at Otranto Castle to deliver Isabela. Theodore, meanwhile, is freed by Manfred’s own daughter Matilda, who loves him, and the two set out to reunite Isabela with safety. The knight who appears turns out to be Isabela’s father, Frederic, a revelation that ripples through the castle’s corridors like a tremor. Frederic’s return to the tale brings healing to some wounds and danger to others, as he finds himself entangled in Manfred’s plans and the fragile balance between loyalty and desire.
As the dramatic web tightens, Frederic heals within the castle’s walls while Theodore hides in a forest, and Manfred proposes a dangerous bargain: he and Frederic will exchange daughters in marriage, a scheme intended to consolidate power and extinguish opposition. Frederic’s attempt to woo Matilda is interrupted by the looming presence of the giant knight, and the moment of truth reveals Frederic’s honesty and misgivings about the proposal. The plot spirals toward tragedy when Manfred, consumed by ambition, orders the elimination of Isabela, only to precipitate the collapse of the very dynasty he sought to control—his own daughter dies in the chaos, a stark consequence of his reckless scheming. The Giant Knight destroys the castle and kills Manfred in the fall of stone and shadow, leaving Theodore and Isabela free to find a hopeful future together.
Back in the present frame, Vozáb’s conversation with the interviewer reaches a tentative crossroads, as the possibility that supernatural elements might be part of the story is raised. Just as Frýba begins to voice skepticism about such forces, the film cortina drops a final, sudden note of mystery: grit and fragments crash from the walls, and the Giant Knight’s hand appears atop a tower, signaling that the legends he has pursued might still hold a grip on the world. The ending leaves viewers with a lingering sense of wonder and doubt, inviting reflection on how much of what we read is history, how much is myth, and where the boundary lies between the two.
Throughout the film, the core and the frame work together to explore how a relic of the past can be both a compass and a boundary—one that guides a researcher toward possible truth while also blurring the line between evidence and imagination. The interplay between Vozáb’s meticulous sleuthing and the book’s dramatic, almost operatic history creates a dialogue about memory, belief, and the enduring pull of stories that claim to be real.