In an enveloping Victorian England, a renowned botanist, Dr. Wilfred Glendon, embarks on a research journey to the remote mountains of Tibet. While exploring the exotic flora, his curiosity leads him to a mysterious fox, which ends up attacking him. During his stay, Glendon begins to experience unsettling physical and mental changes. Upon returning to London, he tries to return to his normal life, but it becomes impossible to escape the curse of the wolf that consumes him.
As he starts to lose control during the full moon nights, a series of brutal attacks unfold in the city. The shadow of his dark secret looms over his fiancée, the beautiful Lisa, and the intriguing Dr. Yogami, an expert in the occult who becomes obsessed with the curse that plagues Glendon. As his humanity teeters on the edge of the abyss, Wilfred finds himself in a frantic race against time.
The strange occurrences around him captivate the interest of the London citizens, and the hunt for the mysterious creature becomes inevitable. With each transformation, the line between man and beast blurs further. Desperation overtakes him as he searches for a solution to his curse, confronting a fate that forces him to question the nature of humanity and monstrosity. With a final, tension-filled twist, his struggle for redemption leaves us pondering the dark corners of the soul.