Moreover, the timing of the video was superb; they had installed a high-powered camera that was focused on the window of their hotel corridor.
There were also hidden cameras in the hotel corridor, no idea from what angle they were filmed, but they just happened to capture her room entrance.
It began with Xia Ju'an coming to look for her, waiting in the lobby. Many people saw this; she followed Xia Ju'an into the elevator, then entered her room.
About half an hour later, Xia Ju'an came out—well, he had made a pot of tea in her room and chatted for a while.
Half an hour is enough time for something to happen, although it would be rather quick. Then the man left Xia Siyu's room and returned to his own, leaving several hours later.
His arrival was swift, and his departure just as quick. If the cameras weren't constantly watching, it's likely nothing would have been captured.
