Is chasing the boss's wife at night a good person or a bad person?

Liu Yin, the proprietress, is a good person.

Liu Yin is the owner of the bar and a member of the investigation team. She is a kind, fair and intelligent person who provided a lot of key information and help in the process of solving the case. In the play, she did not show any unhealthy or evil tendencies, but helped the protagonist solve the case and crack down on criminals. So we can think that Liu Yin is a good person.