A classic horror fiction set-up, although if you're expecting something terrifying every minute, this isn't it - it's a slow burn. Whilst the pacing dips a little in the middle (for reasons I won't spoil), in recent episodes it's fast developing into a gripping story. Also, I do appreciate it when someone actually starts to reveal what's going on, I've listened to too many podcasts where the realisation 'you don't know where this is going, do you?' has slowly dawned. Just beware the early-season jump scares!