Fingerprint Unlock Failed, No One Is Outside the Door!

[Supernatural] [Weird] [The protagonist has a brain] At twelve o'clock in the middle of the night, the sound of "fingerprint unlock failed" came from the smart door lock, but there was no one outside the door. My (Su Chang) and my boyfriend (Chen Fan) were in a ghost! At the same time, Zhang San and Kato, who came to return the car to us, also met ghosts. We managed to survive that night, and the next day, we found a master, who sent his proud disciple Xiao Tang to catch ghosts. However, something happened at night that left us unable to make a choice: two Tangs appeared outside the door and on the balcony at the same time. Which one is the real Tang? …………