Xiong Er, an ordinary young man burdened with the curse of "seeing things you shouldn't see", received a mysterious invitation at the lowest point in his life - from the "Alien Hotel" located on the edge of the city and shrouded in fog all year round. This hotel never recruits students from the outside, but only accepts people selected by the "rift": here, behind every door is an independent alien space, and every guest is burdened with unfinished obsessions, and the hotel itself is the hub that maintains the balance between reality and the alien world. The moment Xiong Er stepped into the hotel, the world in his eyes completely collapsed: the corridor walls oozed with ink-colored "blood of rules", the corners of the stairs hid shadows that devoured memories, and behind the smile of the hotel owner's "lady boss," there seemed to be a secret that spanned thousands of years. As more and more alien rifts get out of control, strange overlapping phenomena begin to appear in the real world. Xiong Er is forced to awaken the "Night Watcher" bloodline in his body. While unraveling the truth about his own curse, he teams up with other residents to fight against "rift eroders" in different alien spaces and protect the balance of the hotel. But he gradually discovered that the existence of the hotel was no accident, and his destiny had long been tightly bound to this mysterious building that connected life and death and spanned dimensions.