Something Rotten in Denmark

What is rotten in Denmark? This question was mentioned frequently, and the quote is well known, but rarely is the question answered. I would like to propose that death-- more specifically death out of its place-- provides the rotten stench. The scene with the gravedigger led me most directly to this conclusion. He discusses how bodies are often rotten before they arrive, and his job is to put death where it belongs (by burying it). The king, poisoned in his own garden, is the initial source of rot. This may explain why his ghost haunts rotten Denmark. Later, when Hamlet hides the dead body, he adds to the problem. This explanation makes sense to me especially in the presence of murder and the king's ghost. It also gives a reason for the inclusion of the gravedigger's scene.