During World War I, the engineer Torben returns home with secret papers from the Russian Tsar to the courier Tuschin, Torben's best friend. Tuschin is found murdered, however, and to solve the murder, Torben stays at his hotel. Here he meets several mysterious people, not least the breathtaking stenographer Inge. But in the hotel, no one is who they pretend to be.

Before a planned African expedition, a man's fiancée worries her father's guest plans to steal one of her father's rubies. The couple are kidnapped and held prisoner at a mysterious, creepy house. Strange things are afoot at Satan's house.

In 1913, Carl is released from prison, where he served a sentence for stealing. Spurned by his circumstance, Carl rejects God and resumes his fast life of crime. Before long, his fate intersects with that of Mary, a devout orphan, prompting a romance and a reevaluation.

On New Year's Eve, the convicted murderer, Strong Henry, escapes from prison and collects his son from the orphanage. When he breaks into a local manor to get some milk for his child, he is surprised by a young woman, Eva. Out of pity, she decides to help the stranger, but unfortunately some of the manor's other occupants wake up and call the police. Fourteen years later, Henry is released from prison. Convinced that Eva betrayed him, he sets out to take revenge and find his son.

Not long before marine officer van Hauen goes off to war and heavy-heartedly leaves his family, he coincidentally discovers that his wife has a secret liaison with the dubious Count Spinelli. What the van Hauens do not yet know, is that the sleazy Spinelli has a hidden agenda.

1922 film by Benjamin Christensen