Episode 1: La pesadilla. A Carpathian village is plagued by a vampire; the town's men suspect Lolakin, a reclusive aristocrat. Catalina loves Lolakin and demands that he marry her and take her away or else she will produce "proof" that he is the vampire.

Episode 1: Freddy. A variety theater company is heading to a city where it will perform for a few weeks. However, the members of the show will die every day at the hands of an impossible murderer.

Episode 2: El caso del Señor Valdemar. Mr. Valdemar, a terminally ill patient, asks his friend, a hypnotist doctor, to apply this treatment with a result that nobody could expect.