If you use the Internet, if you often video chat with people, if you meet up with online friends, then please be careful, maybe you will be the next one... At midnight, Su Yang, a young and lonely white-collar worker, was looking for emotional comfort online as usual. This time, he received a tempting invitation from Zhu Su, an online friend who lived in Room 602 of a certain community. Su Yang believed that this would be a romantic encounter and gladly went to the appointment. However, he was unexpectedly involved in a series of bizarre and terrifying events. First, he was told that Zhu Su had been missing for many months, then he received a strange text message from "Zhu Su" in the middle of the night, and the next morning, the mobile phone that sent the text message was found in the hands of a cor