Police Search A House Giving Out Foul Stench On A Complaint Made By Neighbors, Ends Up Finding A Moving Floor

What Was It

Surprisingly, many people would come and go from the house. Especially, since the time the smell had begun to come. What struck the neighbors, even more, was the fact that none of the visitors would stay there for long. What was so important in the house that the visitors would go inside it despite the foul smell? Or was it the source of smell they were after?