On the surface, Saya is a stunning 16-year-old, but that youthful exterior hides the tormented soul of a 400-year-old "halfling." Born to a human father and a vampire mother, she has for centuries been a loner obsessed with using her samurai skills to rid the world of vampires, all the while knowing that she herself can survive only on blood like those she hunts. When she is sent onto an American military base in Tokyo by the clandestine organization she works for, Saya immediately senses that this may be her opportunity to finally destroy Onigen, the evil patriarch of all vampires. Using her superhman strength and her sword, she begins to rid the base of its evil infestation in a series of spectacular and elaborate showdowns. However, it is not until she forms her first human friendship in centuries with the young daughter of the base's general that Saya learns of her greatest power over Onigen may well be her ability for human connection.

A group of surfer students discover an old satanic board game called Mamba. Every time one person loses in the game, they suffer a dire death.

One year after a tragic accident, six girlfriends meet in a remote part of the Appalachians for their annual caving trip. Deep below the surface of the earth, disaster strikes when a rock falls and blocks their route back to the surface. The girls soon learn that Juno, the thrill-seeking leader of the expedition, has brought them to an unexplored cave and that as a result no knows where they are to come rescue them. The group splinters and each push on, praying for another exit. But there is something else lurking under the earth - a race of monstrous humanoid creatures that are adapted perfectly to life in the dark. As the friends realize they are now prey, they are forced to unleash their most primal instincts in an all-out war against an unspeakable horror - one that attacks without warning, again and again and again.

A tremor under the surface of Lake Victoria unleashes scores of prehistoric piranhas, an event which rallies the local sheriff (Shue) who will risk everything to save her townsfolk.