How to evaluate the movie The Uninvited Guest?

The story of The Uninvited Guest is not so strong, and it is easy for the audience to gain insight into the subsequent development of the story from small details.

However, the director's shrewdness lies in that he fills the information gap by repeated inversion and flashback, which greatly increases the interest and appreciation of the film.

For example, the role of Ma Mingliang (Shawn Dou) started as an ordinary takeaway brother. He has bad luck. When the takeaway met this murder case, he became the center of the whirlpool in a daze.

However, after being discovered by Lao Li (played by Fan Wei) that he was not an ordinary takeaway, he returned to Ma Mingliang from a perspective and told the story of his appearance.

The director overturns the reconstruction timeline again and again with Ma Mingliang's appearance, and takes the repeated scenes as the anchor point of timing, which will not confuse the audience, but also effectively make up for the missing information.

What happened during the time when Lao Li fainted? Why doesn't the owner's name match the person who first appeared? If you mistook one for another, why did Lily go upstairs with him? Why was Lily killed?

This puzzling murder case appears in every flashback.