Roommate Takes Keys, I Change Locks, She Panics

After a year and a half of sharing an apartment, roommate Tang Li acted unusually eager on her move-out day. Her parting words, 'Remember to lock the door tonight,' carried a deep meaning. That night, Ning Ning discovered the spare key was missing. She didn't make a scene and immediately changed the locks and installed cameras. Three days later, at dawn, Tang Li returned with the key, only to fail. She then became increasingly frantic, testing the door late at night, ordering takeout under another's name, and leaving threatening notes under the doormat. After police intervention, a blood-stained black bag and a note saying 'Shut Up' hung on the doorknob. The year-and-a-half friendship was actually a long-planned hunt. Behind Tang Li stood another person.