Admittedly, I had no clue what to expect from this movie, I had not seen a trailer nor read a review, and after watching it I can see why. The first half of the movie is pathetically slow, however the last half comes close to making up for it and actually got my blood pumping a few times.
To explain the story, a dead detective is revived by having his body overtaken by a parasite, called a grail, which reanimates his body. In this new form, he and his partner turn into vigilantes, with the criminals providing the much needed blood the grail needs in order to survive. However, as most possessions go, the "human" side of him starts to fade and a more carnal side begins to appear, frightening his partner into finally having to turn on him.
It was hard for me to see a story taking place, scenes were happening but no real apparent moving forward of the plot, but I could have been missing it. No offense to the actors, but it was hard knowing who was what as, not that they looked liked one another or anything, but the characters didn't come across very well and I found it hard knowing exactly which cop was on screen.
Just not a well done movie, at all.