Stranger in apartment vanished in the bathroom

2004. Came home from my shift, went to bed. Locked the door with a key. Half-asleep I heard a pop and then footsteps, I was a bit freaked out. It was summer, the window was wide open so I thought it was noise from the yard or I imagined it, that happened sometimes when I was falling asleep. Now I hear distinct movements in the kitchen, I even got chills. First thought was to find something heavy, I thought someone had broken into the place, I grabbed a tennis racket. I carefully peek through the doorway into the kitchen and see a guy sitting on a stool, his back to me. Well, I'm thinking, this is fucked, either bolt out the window or whack him across the back. I try to get a look at him. Grayish hair, beige coat, on his head a 60s-style hat with a feather like Robin Hood. Next to him a narrow suitcase. He leaned over like he was reading something. Then he stands up and, putting something in his pocket, turns around. Seeing me he smiled and raised his hands like he was surrendering. He says: "Excuse me please, don't be alarmed, I got the wrong apartment." Glasses, big square old-fashioned ones, a tie. Looks like Chikatilo. I'm sorry, he says, can I use your bathroom? I'm kind of in shock, I point at the front door with the racket, like get the fuck out. He stands up, says thank you, and like a total psycho he fucking bolted into the bathroom. I'm standing there in shock waiting. I hear a muffled pop like that. I wait about three minutes. I open the door and there's fuck all. A strong smell of metal. Whoever I told doesn't believe me. Devils exist.