The tales of "The Robber Bridegroom" and "Fitcher's Bird" by the Brothers Grimm and Charles Perrault's "Bluebeard" all fall along the same lines. Each story follows a female protagonist who marries or is soon to marry a man who they each discover to be evil and murderous.
The Grimms' "Fitcher's Bird" follows a very similar plot line. However, the girl is given an egg rather than a key. The tale also follows the death of the 2 sisters preceding the protagonist and even has her bring them back to life. In order to save herself and her sisters, she covers herself in honey and feathers so no one can recognize her. She is then able to trick her bridegroom into returning to their home (after making him unknowingly carry her sisters back to her parents) and burn him alive along with their wedding guests. The protagonist in this story is much more active and cunning than those the other two tales.
http://one-elevenbooks.com/wp-content/uploads/2013/08/robber-bridegroom2.jpg prince and the other robbers executed.
My favorite of the 3 tales was "Fitcher's Bird," because I admired how cunning the protagonist was, especially because of the typical passive portrayal of females characters in fairytales. I did not like that Perrault added morals to the end of his story. I think it takes away from the imagination and intuition of the reader. Additionally, the first moral was extremely sexist and offensive. I enjoyed "The Robber Bridegroom," but found it unnecessarily gory. Though many fairy tales fall into the same category.
The biggest difference between these tales and other Grimms' tales is the portrayal of marriage. Instead of the typical happy end, it is the horrible beginning to the protagonists marriage to a nightmare. These 3 stories may have different plots lines, but they all share a common motif.