The content life of Frieda and John Golden begins to spoil after they return from their honeymoon in Scandinavia. Frieda keeps finding their belongings rearranged and thinks she is going mad, John finds strange markings on his body. They both have visions of a faceless, hooded figure present in their home. Their pets begin dying or disappearing. The couple struggles to return to normalcy as something seems to be pushing its way into their life. After researching online, John and Frieda discover that other tourists have experienced similar symptoms after visiting the old fort in Copenhagen harbor— the ‘Trekroner Seafort.’ The newlyweds must figure out what they’ve brought home with them before their sanity unravels, before the sinister presence is fully born into their reality…