The Invisible Intruder
Language: en

I went back to the old family estate for the holidays, only to be caught in a torrential downpour. Staring out the window, my younger brother suddenly called out to me: "Bro, look." "Does it look like there's a silhouette in the rain?" I looked out, but saw nothing. A few minutes later, my younger sister's voice came from the bathroom: "I'm showering! Stop trying to open the door!" But my brother and I were clearly in the living room. Only outside the bathroom door, there was a trail of muddy footprints...