Dead then alive then dead then alive

Date: 9/25/2019

This one was short but I thought it was worthy to put on my page. I remember I was part of solving this murder mystery thing or I was just watching other people do it idk. But basically the backstory is someone killed a brother and sister and then killed their parents. The brother and sister were grown up and the parents were elderly. When we were at the gravesite where, somehow, the siblings were alive and then killed AGAIN by some poison or something, and they sank into the ground where their graves were. Their eyes rolled back into their head which was really gross. Then I saw a big puddle of bubbling thick mud forming above their graves (they were buried next to eachother). Well they both poked their heads out in the mud and the sister nonchalantly said “are we dead yet?” And one of the detectives just casually said “yep” and then they just sank back into the ground again. Idk anymore guys.