This movie came out a few months after The Matrix and while there are obvious parallels, it is a different kind of sci-fi movie.
The basic premise goes like this: the inventor of a new VR simulation system is murdered and his friend/colleague must unravel the mystery of who killed him and why.
The movie does a good job of mixing sci-fi, noir, and mystery. The acting was mostly pretty good. What didn’t work was the lack of compelling characters to drive the story. There wasn’t much tension and the “rules” of the simulation system weren’t very well defined.
I used to really like this movie, but it hasn’t aged very well and a lot of the fun was from the first time payoff.