Burying your loved ones under the floorboards, Alfred Hitchcock would be impressed.
Ah, but Poe does it so much better:
The old man was dead. I removed the bed and examined the corpse. Yes, he was stone, stone dead. I placed my hand upon the heart and held it there many minutes. There was no pulsation. He was stone dead. His eye would trouble me no more. If still you think me mad, you will think so no longer when I describe the wise precautions I took for the concealment of the body. The night waned, and I worked hastily, but in silence.I took up three planks from the flooring of the chamber, and deposited all between the scantlings. I then replaced the boards so cleverly so cunningly, that no human eye -- not even his -- could have detected anything wrong. There was nothing to wash out -- no stain of any kind -- no blood-spot whatever. I had been too wary for that.