Bob, Sam and Terry are trapped in a mineshaft with only a narrow tube allowing air into the shaft as they await rescue. Bob and Terry do not get along. Bob sees the opportunity to rid himself of Terry and blame the mining accident.
Bob kills Terry and stuffs his body into the tube. Sam is horrified.
"What have you done!? Not only have you murdered a man in cold blood, you've blocked our only means of getting air. If we do not remove the body from the shaft we will both die!"
Knowing he's right, Bob works with him to remove Terry's corpse from the tube. The body has bloated and the men are forced to dismember it in order to get it out. It's very messy work.
Once finished, both men, covered in gore, await their rescuers whom they can hear digging down to them. Sam tells Bob that once they arrive he will tell them what he's done and Bob will be arrested. Bob scoffs and tells Sam they will both be arrested for Terry's murder because he will tell the authorities that Sam helped him kill Terry.
"That's a lie and you know it!", Sam insists.
"They won't believe you, Sam.", Bob sneers.
"Why?", Sam asks with indignation.
"Because... We're both covered in Terry's blood."