Well Deloused, since you asked (i was waiting), In the breifcase is Marcellis Wallace's soul.

Let me explain.

John Travolta and Samuale Jackson go to the house of the three guys to get the breifcase. THose three guys are satans workers. When John Travolta opens up the case the code he puts in is 666. This is true if you look carefully. Also in the seen where You first see Marcellis you see a bandage on the back of his neck, probally where they took his soul.

So he sold his sould to the devil and wanted it back. By the way, i figured all this out while stoned. Makes sense right?

Does anyone else always see John Travoltas character rolling joints in the backround of most scenes?