Investigation Discovery Explores Real 'Bloody Marys'

“Bloody Mary. Bloody Mary. Bloody Mary.” You know the legend, right? Say this thrice while looking into a mirror and you're in deep trouble via a vengeful woman’s wrath. Try it this Halloween night...we dare you! Or, you can just tune into Investigation Discovery’s new special, “Bloody Marys” airing at midnight on Thursday, October 31.

Based on the fact that many of history’s most brutal murderers were named “Mary,” this special delves into the notorious tales of these women and what drove them to such heinous acts. It should be noted that “Mary” was one of the most popular names from the 1800s to the 1960s, so it may be just a coincidence.

Here are some of the scary Marys that will be featured in the special: