She was merely holding onto the hope of trying her luck, never expecting there actually to be a passage here.
No idea why she had this intuition, just felt there might be a way through here.
She turned on her phone's flashlight and walked inside.
This time, if her guess was right, Tang Si would be here.
If she guessed wrong, she'd still have some evidence of a crime in her hand.
If this was indeed a setup by Tang Si, the police department wouldn't know about it internally; there's no way she'd notify them with wild guesses. Perhaps even if she spoke, nobody would believe her.
The best way to not alert anyone was to watch quietly—
Find Tang Si and tell him he deliberately let Gu Nanjiu out, and someone wants to kill Gu Nanjiu.
...
At this moment inside the bar.
Nothing much different from the bars outside, full of dazzling lights, loud music blaring in your ears.
Perhaps what differs is the thick, pervasive cloud of smoke, far denser than in bars outside.
