On a stormy night in 1830, a group of friends gathers in an isolated mansion in the English countryside, seeking inspiration for a new horror book. Among them are the brilliant yet troubled writer Lord Byron, his personal physician John Polidori, and the renowned novelist Mary Shelley. As they share ghost stories and horrors, the boundaries between reality and fiction begin to blur.
The atmosphere grows increasingly dark and oppressive as the group delves deeper into tales of terror, confronting the personal demons each of them carries. Tensions rise and secrets start to surface, revealing the anxieties and ambitions lurking behind their bright smiles. With the adverse weather making any hope of escape impossible, the mansion seems to come alive, pushing the characters toward an abyss of madness.
As lurking visions and inexplicable noises invade the night, Byron's madness and Mary's insecurities threaten to spill over, leading the group to confront their deepest fears. Amid the growing paranoia, the plot is imbued with tension and an unsettling air, until finally, in an unexpected twist, a tragic event will change the course of all their lives. With the echoes of their own creations resonating in the background, this night of terror transforms into an inevitable whisper of what it means to be human.