A few days later, while cleaning the bathroom, the woman noticed a tiny hole in the wall. At first, she thought it was just a crack or a chipped spot. But on closer inspection, she realized the hole was too perfectly made, as if done with a special tool. And most importantly – the hole definitely hadn’t been there before.

The thought that someone might have deliberately left a trace in her home wouldn’t let her rest. She remembered the plumber, the only stranger who had recently been in the bathroom. Fear began turning into panic: what could the hole have been for?