![](https://image.tmdb.org/t/p/original/dzTrqZyNcvcV85FgtKDFRkAAuwn.jpg)
![](https://image.tmdb.org/t/p/w342/faUk6eC6O5gizVGq8jkYj6OUgzQ.jpg)
Secret of the Trash House: The Pupil in the Wall (4)
An accusatory post about Hyun Ho appears online. The Center receives multiple calls when a night club suddenly turns into a nightmare.
![](https://image.tmdb.org/t/p/w300/kY3NxbHa2R6kna8eoRNDGuDk49O.jpg)
![](https://image.tmdb.org/t/p/w300/vX8X5GpRxUGEO2OtFgkbPtZfcBC.jpg)
![](https://image.tmdb.org/t/p/w300/99FWIM6uqiA8YNm4AgtVE31OM5u.jpg)
![](https://image.tmdb.org/t/p/w300/i8iujCYtGOG8f6ui90ADs5NxHKb.jpg)
Other episodes for this season
![A Voice in the Dark](https://image.tmdb.org/t/p/w300/sFEE9oipMRk7lJiFBFIHxHgaQab.jpg)
![Healing Mother's Two Faces (1)](https://image.tmdb.org/t/p/w300/pFt7GVwGHi57uD2xAWNRGeix0bB.jpg)
![Healing Mother's Two Faces (2)](https://image.tmdb.org/t/p/w300/sKfHIFUn3TQll181XDwdVesZ6Zm.jpg)
![Dark Generic Bell Sound: The Secret of the Chocolate Box (1)](https://image.tmdb.org/t/p/w300/wTPuq8Ry2eG4HQ5Ozju4eQoFEwh.jpg)
![Dark Generic Bell Sound: The Secret of the Chocolate Box (2)](https://image.tmdb.org/t/p/w300/ckMk8Jqzi9Gz2NhJyUzW1b6sWUK.jpg)
![Secret of the Trash House: The Pupil in the Wall (1)](https://image.tmdb.org/t/p/w300/rLKlkczPV1AgyGAeiF0JakUgMAn.jpg)
![Secret of the Trash House: The Pupil in the Wall (2)](https://image.tmdb.org/t/p/w300/9qXulRGdaHmTlS146RC0UBHvjJC.jpg)
![Secret of the Trash House: The Pupil in the Wall (3)](https://image.tmdb.org/t/p/w300/dClSovM90EEOiAnrhivzYWnXT8n.jpg)
![Secret of the Trash House: The Pupil in the Wall (4)](https://image.tmdb.org/t/p/w300/dzTrqZyNcvcV85FgtKDFRkAAuwn.jpg)
![Devil's Whisperer (1)](https://image.tmdb.org/t/p/w300/uMXEQKqsNbPeuIIMASrbIUWGCku.jpg)
![Devil's Whisperer (2)](https://image.tmdb.org/t/p/w300/cOYhFUJsatShLkDeYecRqHJWHqK.jpg)
![A Call From the Fiery Pit](https://image.tmdb.org/t/p/w300/rZ4F5q5IICfyq90JOSHIxgD3L9j.jpg)
![The Birth of Satan (1)](https://image.tmdb.org/t/p/w300/iCJpPVDQKlCwf4NGzozyAsI33t2.jpg)
![The Birth of Satan (2)](https://image.tmdb.org/t/p/w300/AiXy88GLKrDwimOXf80Wmck1NXg.jpg)
![For the Last Golden Time (1)](https://image.tmdb.org/t/p/w300/9pQclDRk5TTcLLKHidRL2EXvjSA.jpg)
![For the Last Golden Time (2)](https://image.tmdb.org/t/p/w300/ysuLdpe2aY4Jb3UIoixIyCeoFON.jpg)
An accusatory post about Hyun Ho appears online. The Center receives multiple calls when a night club suddenly turns into a nightmare.