This is the most terrifying Twilight Zone episode that I have ever seen. It gave me terrible nightmares and has made me terrified of ticking clocks ever since I first saw it, at 16 years old. It is the chilling tale of a woman suffering from exhaustion, who has a recurring dream in the hospital of needing a nurse and ending up going down the lift to the morgue, where the nurse pops her head out of the door and says calmly, "Room for one more, honey." Everyone the girl knows brushes off this dream as a symptom of her exhaustion, but it persists and gets stronger. The purpose of this dream comes to light at the end of the episode. It is a horrible realisation. Arlene Martel is wonderful as the frightening morgue nurse: she has this cold, exotic look that chills you to your very bones. It is easy to see why she was chosen for the role of the morgue nurse. The woman who plays the sick girl has the most horrifying scream I've ever heard. It is an episode you will never, ever forget. Trust me.