For those who like a good scare for Halloween, or for lunch, Burger King has a new sandwich that may give you nightmares -- and possibly a stomachache.
The fast food chain is offering the "Nightmare King" for a limited time. It is a quarter-pound burger with a crispy chicken fillet, melted American cheese, thick-cut bacon, mayonnaise and onions on a green sesame seed bun. It's also aptly named, as Burger King claims to have conducted a clinical study that showed that eating the burger will make you three-and-a-half times more likely to have a nightmare.