We all hear strange noises coming from different parts of our home every once in a while, right? It’s not something uncommon. But what if you heard the same sounds coming from the walls of your home for more than a decade, and had no idea what was making that sounds? I don’t know about you, but it would have driven me insane.

Well, the couple in the video below kept hearing a loud, strange noise coming from the walls in their front room of their Pittsburg home. What’s more, the sounds began in the evening, at around 7:50 p.m.

As you can imagine, the repetitive sounds can get extremely irritating, but this couple has somehow managed to resist the urge to find out what exactly was making that sounds for no less than 13 years.

But the news about the strange sound began to spread in the family’s community, and sparked the interest of a local contracting company who offered to solve the mystery for free.

So they broke down the walls and finally discovered what was hiding inside the couple’s walls for all those years. You will never believe what it was! I would have never guessed it.

Watch the video below to find out what it was.