An eclectic group of people are stalked by a masked killer in an old mansion.

A woman is abandoned by her lover and prostitution is the only way she has to survive.

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.

Ruth Earlton has come home to her ancestral mansion to claim her inheritance. Accompanied by her boyfriend, she discovers that her father died suddenly under suspicious circumstances. Now it's her turn, as her deranged and relentless uncle targets her for death with the help of his wife and son, plus a very unhappy ape.

Henriette and Louise, a foundling, are raised together as sisters. When Louise goes blind, Henriette swears to take care of her forever. They go to Paris to see if Louise's blindness can be cured, but are separated when an aristocrat lusts after Henriette and abducts her. Only Chevalier de Vaudrey is kind to her, and they fall in love. The French Revolution replaces the corrupt Aristocracy with the equally corrupt Robespierre. De Vaudrey, who has always been good to peasants, is condemned to death for being an aristocrat, and Henriette for harboring him. Will revolutionary hero Danton, the only voice for mercy in the new regime, be able to save them from the guillotine?