After killing one of their own, a group of organ-stealing nurses pay the consequences. This is quite possibly the most entertaining Thai horror film ever made. The characters are hyperbolized to the point where they are intrinsically interesting to watch (not to mention the fact that all of them are gorgeous Thai girls in scantily clad nurse uniforms) and they also add an element of black humor. Even the ghost herself shatters genre clichés with her obvious sadism and enjoyment in reaping vengeance. The main attractions, however, are the spectacular death scenes that arrive during the latter half. These are highly imaginative with impressive quantities of blood, but are not very disturbing because they're so much fun to watch. The nurse named Nook is one tough bitch who won't go down without a fight, and the one-on-one duel to the death between her and the ghost is an instant classic. There are one or two scenes with poor CGI, but this is an extremely inventive horror film with frenetic pacing and excellent camera-work and lighting. This is a horror film that's meant to be fun first and foremost - and it works.
Some other reviewers on other websites seem to gloss over the fact that the ghost in this movie is NOT the clichéd stereotype that pervades some of the Japanese and South Korean horror releases. I can tell you with 100% certainty that the ghost in Sick Nurses is instead a SATIRE of Japanese horror because she is unequivocally SADISTIC, reaping boatloads of pleasure with each and every kill. This is very different from the stereotype. The reviewers may be partially correct in pointing out that the antagonist is a woman ghost, but were completely wrong in asserting that the character is a cliché.
Another obvious misstatement by these reviewers is that Sick Nurses is a superficial movie. Sure, it's not as magnificent as A Tale of Two Sisters (2003) or as cerebral as Kairo (2001), but it does have quirky victims and good characterization in general because each obsession is exaggerated to the point where it becomes blackly comical. I know American moviegoers are typically too stupid to pick stuff like this up (e.g., there's a very specific reason why the girl takes a shower with her clothes on), but that doesn't change the fact that it's still there to be seen and enjoyed. Not every horror movie needs incredibly annoying, drug-addicted, sex-crazed teenagers as protagonists. For most viewers of mainstream Hollywood horror this little fact may be difficult to understand, I know, but there are other people that exist in this world.
I usually prefer horror movies that are more dense with content (nothing recent from Hollywood obviously), but this movie has all the goods for a fun evening of death and destruction if you have enough brains to pick up on the satire and hyperbolized character traits.
