It has been more than 10 years since I have seen this movie, but it is clear from reading the user comments that no one understands the basic plot. It is a little heavy and presupposes some basic knowledge of physics, so I will do my best to explain it even though it has been 10+ years.
In a plot similar to the Da Vinci Code, Satan or Evil, unbeknownst to everyone, has been locked up and carefully guarded for millenia. However, the forces are starting to stir in an unusual manner, so the priest guarding the presence summons some scientists to study it setting in motion a chain of events that eventually bring about the return of ultimate evil to our world. We are gradually made aware of this because the scientists upon arriving at the church begin having unusual dreams. The dreams are messages from the future accomplished by tachyons which are particles that travel faster than the speed of light. A well known property of physics dictates that time slows to zero for particles that approach the speed of light and theoretically time goes backward if the particles "break" the speed of light. So we are to believe that humans in the future have developed tachyon transmissions to warn humans in the past (i.e. the present) and prevent an apocalyptic event. Unfortunately the transmission is jammed for some reason and never completed so the scientists do not know how to interpret the dream or in this case message.
Eventually the series of events climaxes when a possessed student tries to bring the ultimate evil to our world but is stopped by a lady scientist who tackles the possessed student and gets trapped in the alternate dimension, supposedly all is well.
However, the movie concludes when one of the scientists some time later finally receives the full transmission where it is revealed that at some time in the future the ultimate evil emerges from the church in the form of the lady scientist who got trapped.
For me this conclusion provides the thought provoking idea that the message that humans in the future were trying to communicate was that the lady scientist would become the ultimate evil. So we are left to wonder if anything could have been done to prevent the chain of events, tachyons or not! It's a rare horror that follows similar themes as Terminator which I give 7 out of 10.
In a plot similar to the Da Vinci Code, Satan or Evil, unbeknownst to everyone, has been locked up and carefully guarded for millenia. However, the forces are starting to stir in an unusual manner, so the priest guarding the presence summons some scientists to study it setting in motion a chain of events that eventually bring about the return of ultimate evil to our world. We are gradually made aware of this because the scientists upon arriving at the church begin having unusual dreams. The dreams are messages from the future accomplished by tachyons which are particles that travel faster than the speed of light. A well known property of physics dictates that time slows to zero for particles that approach the speed of light and theoretically time goes backward if the particles "break" the speed of light. So we are to believe that humans in the future have developed tachyon transmissions to warn humans in the past (i.e. the present) and prevent an apocalyptic event. Unfortunately the transmission is jammed for some reason and never completed so the scientists do not know how to interpret the dream or in this case message.
Eventually the series of events climaxes when a possessed student tries to bring the ultimate evil to our world but is stopped by a lady scientist who tackles the possessed student and gets trapped in the alternate dimension, supposedly all is well.
However, the movie concludes when one of the scientists some time later finally receives the full transmission where it is revealed that at some time in the future the ultimate evil emerges from the church in the form of the lady scientist who got trapped.
For me this conclusion provides the thought provoking idea that the message that humans in the future were trying to communicate was that the lady scientist would become the ultimate evil. So we are left to wonder if anything could have been done to prevent the chain of events, tachyons or not! It's a rare horror that follows similar themes as Terminator which I give 7 out of 10.