What's the story of the movie The Uninvited Guest?

The Uninvited Guest tells the story of a dark night in a month. The thief Lao Li (Fan Wei) entered a dilapidated residential building to steal, only to witness a murder case: the mysterious woman (Zhu Zhu) was killed strangely. Just as Lao Li was trying to subdue Yan Zheng (Zhang Songwen), the takeaway Ma Mingliang (Shawn Dou) suddenly appeared in this room inexplicably. The three people are at a loss and have no idea of each other's identity. The constantly reversed plot reveals the story of layers of truth.