It’s a dark night.

You’re in your living room, binge-watching the new season of “Stranger Things,” when you notice a shrill whistling sound coming from somewhere inside the house. You pause the show and get up to investigate.

Walking into the hall, you’re struck by a sudden chill in the air, which causes you to emit an involuntary shiver. You draw your arms inward and follow the whistling sound to your bedroom, but just as you open the door, it stops. You enter the still room and scan for any unusual signs. Read more