Night Owl Knocks on the Door

Luo Jiarong moved to an old community and met a strange black cat when he returned home from working overtime. The cat's strange behavior frightened him. The black cat followed him to the door of his house, and after a strange knock on the door, the cat's eyes turned green. The black cat died the next day, and Luo Jiarong seemed to be trapped in a mystery. There were still two malicious eyes staring at him from the dark. What was the weird conspiracy?