In the vibrant and bustling city of Amsterdam, a group of curious Dutch university students stumble upon an extraordinary and potentially perilous discovery. As they are exploring an old, seemingly abandoned warehouse on the edge of the historic Jordaan neighborhood, they inadvertently trigger a series of ancient rituals that open a portal to a demonic realm from the Dutch Golden Age. This era, known for its flourishing art, trade, and scientific advancements, is now revealed as a gateway to a shadowy dimension populated by malevolent entities. As the students cautiously step through this mystical opening, they find themselves transported to a time of opulence and fear. The streets are lined with grandiose houses adorned with intricate details, each one whispering tales of wealth and wickedness. However, the air is thick with an ominous presence as dark figures loom in the shadows, their eyes glowing malevolently. The students soon realize that they have not only traveled back in time but also into a world where ancient magics still hold sway, and demons roam freely. Their initial excitement quickly turns to terror as they discover that the portal is a one-way ticket, trapping them in this alternate reality. They must now navigate through this eerie, historical landscape, seeking not only a way back to their own time but also ways to protect themselves from the malevolent forces that threaten to consume everything around them. Their adventure becomes a race against time as they uncover the secrets of the portal and fight to survive until help can arrive. Meanwhile, back in modern-day Amsterdam, concerned authorities and experts are alerted to the strange occurrences. As they begin their own investigation, they must piece together clues from historical records and folklore to understand what has happened and how to safely close this dangerous gateway before more innocent lives are put at risk. The fate of both worlds hangs precariously in the balance as the students fight for survival and a path back home.