"The patients chosen in the annex are all in the detox ward. They can only go out during the day. I'll take you to find them." The old man now feels extremely insecure and needs other patients to help him share that deep-seated terror.
"You better hurry up." The longer you stay in the Black Building, the more dangerous it becomes. To leave here, you must sacrifice patients, so Han Fei can only rely on the old man as a guide to quickly find some genuine psychopaths, kill them, or sacrifice them.
Smashing open door after door of the compartments, Han Fei discovered that many doors of the wards were inscribed with words—some were curses, others were logical formulas, and some were like diaries; some even had confessions etched on the ward doors.