"When did you lose your phone?"
"Last night," Zhang Heng answered.
"Uhh... which building do you live in?"
Zhang Heng gave the number of the college student accommodations to the guard.
"Unit 2, Block 5?" The guard sounded surprised.
"Why? What is it?"
"Ah, err… no… nothing." The guard was about to say something, but in the end, he clamped his mouth shut.
Zhang Heng reckoned that this man must have filmed someone from the building in secret, and although it had left an impression on him, he was afraid to talk about it.
Pretending as if he had not heard the overtone, Zhang Heng watched quietly as the guard picked out yesterday night's recording. The young man then suddenly hesitated. "Actually, this recording is useless."
"Now why would you say that?"
