Bluebeard

Bluebeard is wealthy, however feared because of his ugly, blue beard. He's been married several times, but no one knows what became of his wives. Therefore he's avoided by the local girls. Eventually he persuades the youngest of a friends family to marry him. After the wedding ceremony she lives with him in his grande château. 

Bluebeard announces that he must leave the country for a while, so leaves all the keys of their house to his wife, telling her they open the doors to rooms which contain his treasures. He gives her the key to one small room beneath the castle, stressing to her that she must not enter this room. She vows she will never enter. He then goes away and leaves the house in her hands. Immediately she is overcome with the desire to see what the forbidden room holds, and takes the key to the room.

Its floor is awash with blood, and the murdered bodies of her husband's former wives hang from hooks on the walls. She drops the key into the pool of blood and flees the room, but the blood staining the key will not wash off. She reveals her husband's secret to her sister Anne, and both plan to flee the castle the next day. But Bluebeard returns home the next morning, and, noticing the blood on the key, immediately knows his wife has broken her vow. He threatens to behead her on the spot, but allows her 45 minutes to say her prayers. She locks herself in the tower with Anne. While Bluebeard, tries to break down the door, the sisters wait for their two brothers to arrive. At the last moment, the brothers break into the castle, and as he attempts to flee, they kill him. He leaves no heirs but his wife, who inherits all his great fortune. She uses it for good.