Pulp Fiction is a great movie, and if you haven't seen it yet, stop reading and watch it!

Now we all know one of the greatest mysteries of this movie is what is in the briefcase? We are never shown whats in it but perhaps these little known facts will shed light on what its contents are.

Jules and Vincent were spared a terrible demise, but maybe he missed for a reason? These guys had the briefcase for an unknown amount of time, and they weren't doing very well. That one guy had been in the bathroom for at least the whole time Jules and Vincent were there. Perhaps he had some constipation. When he burst out he appears anemic. He may have been suffering hallucinations, perhaps from being exposed to something.

Marsellus Wallace is not a bitch. So how did he so easily become a bitch all the sudden? You'd think its because he just got hit by a car, but perhaps there's more to it. When hes crossing the road, he was carrying 2 large cups (of presumably coffee). Coffee is a laxative and helps deal with constipation. He also seemed very weak in general even after waking up.

We notice that the content appear to glow a slight yellow glow. This might happen because of a system in the case to preserve whats inside, or even a reaction by the material to being exposed to air. Maybe it wasn't a good idea to be staring at it?

These glasses Marsellus was wearing is not just any kind of sunglasses. They are similar to protective goggles often worn by metal workers and scientists working with dangerous materials. He could have been supervising the building of some device or experiment.

Vincent also goes to the bathroom often. Another person constipated.

Also maybe relevant, but the combination is suspicious and may give insight to certain intentions Mr. Wallace has that might involve the contents. If we take all these factors into consideration you might be able to guess. 

Then there is the final piece of evidence.

This evidence was met by anger and amusement among the Imgur population.

Source of this post: http://imgur.com/gallery/jzPqj