Yes, a cocktail called the Black Widow does exist. This drink is often associated with something mysterious and gloomy, thanks to its name. There are several variations of this cocktail, but most often the Black Widow is prepared on the basis of vodka or rum with the addition of dark liqueurs or syrups, which gives it a dark, almost black color.

One of the popular Black Widow recipes includes the following ingredients:

Vodka (50 ml)
Black raspberry liqueur or black currant liqueur (25 ml)
Lime juice (20 ml)
Ice
All ingredients are mixed in a shaker with ice and then the drink is served in a cocktail glass. Sometimes syrups or berry garnishes are added to enhance the dark color scheme and create a spectacular serving.

This cocktail is often served at parties with a dark theme, especially on Halloween.