What does the night ending of Hong Kong TV series mean?

In the last few minutes of the story, many stars appeared in the sky, which is very unusual. At the same time, someone in the bar where the boyfriend and girlfriend are located sprayed blood (this may be a prelude to the change). Boyfriend called his girlfriend to let her come out to see the stars, but boyfriend and girlfriend escaped. After receiving the order, the man went to the scene of the accident (the bar just mentioned), and then the zombie came. . .