Haunted House Sleep Test: There’s Someone Hiding in the Mirror

To investigate the truth behind my sister's “suicide,” I angered my superiors and was kicked off the police force. To make ends meet, I had no choice but to take a job as a haunted-house tester. In the mirror inside one haunted house, another me was trying to take my place. I was forced into one serial murder case after another, risking my life again and again to save the dead, who were trapped by their own obsessions...