it's probably inevitable that the popular virtual reality genre ( " the matrix , " " existenz " ) would collide with the even more popular serial-killer genre ( " kiss the girls , " " se7en " ) . 
the result should have been more interesting than " the cell . " 
as the movie opens , therapist catharine deane ( jennifer lopez ) treats a catatonic boy ( colton james ) by entering his mind through some sort of virtual reality technique that's never fully explained . 
after months of therapy sessions in a surreal desert , catharine has no success to report . 
meanwhile , killer carl stargher ( vincent d'onofrio ) has claimed another victim . 
his particular hobby is to kidnap young women , keep them in a glass cell overnight , and drown them . 
he takes the corpse and soaks it in bleach , then suspends himself over the body and jerks off while watching a video tape of the drowning . 
although carl's been doing this for awhile , he's recently become sloppy , and fbi agent peter novak ( vince vaughn ) is closing in fast . 
not fast enough , though , to keep carl from sticking another woman ( tara subkoff ) in the cell or to catch him before he suffers a schizophrenic attack that leaves him in a coma . 
from the videos in carl's house , peter can see that the drowning cell is automated and will fill with water forty hours after the abduction . 
to save the kidnapped girl , peter has to find the cell before the end of the day , and comatose carl's not talking . 
so off they go to catharine in the hope that she can go inside carl's mind and find out where the cell is in time . 
the focus of " the cell " in on the ornate interior of carl's mind , but the universe director tarsem singh creates seems more an exercise in computer-generated spectacle than an exploration of the psychotic personality . 
for the most part , it's style without substance . 
in his own mind , carl is a decadent emperor in flowing robes , ming the merciless , as well as a frightened boy ( jake thomas ) abused by his father . 
all in all , the mind of a psycho killer turns out to be a strangely dull place , and i kept wishing i could fast-forward to the next development . 
singh is best known for directing music videos , particularly rem's " losing my religion , " and " the cell " seems very much like a really long , really slow mtv video with the sound deleted . 
singer lopez seems to think she's in a video as well ; she devotes more time to posing in elaborate costumes than she does to acting . 
the premise had great promise . 
the computer-generated world within carl's mind could have been a bizarre , surreal universe governed by insanity and symbolism rather than logic . 
the first room catharine enters in carl's head shows this promise . 
she finds a horse standing in center of the room ; suddenly , sheets of sharp-edged glass fall into the horse , dividing it into segments . 
the panes of glass separate , pulling apart the pieces of the still-living horse . 
this scene is twisted , disturbing , and thought-provoking , because the psychological importance of the horse and its fate is left to the viewer to ponder . 
another element that should have been developed is the effect on catharine of merging with the mind of a psychopath . 
their minds begin to bleed together at one point in the movie , and this should have provided an opportunity to discover the dark corners of catharine's own psyche . 
like sidney lumet's " the offence " or michael mann's " manhunter , " " the cell " could have explored how the madness of the killer brings out a repressed darkness in the investigator . 
however , catharine's character is hardly developed at all , and lopez has no depth to offer the role . 
bottom line : don't get trapped in this one .