A young woman inherits an old hotel in Louisiana where, following a series of supernatural "accidents", she learns that the building was built over one of the entrances to Hell.
The Boyle family moves into a gothic style house by a cemetery, unaware of its bloody path and guts-spraying future.
A burned-out New York police detective teams up with a college psychoanalyst to track down a vicious serial killer randomly stalking and killing various young women around the city.
Indian sheriff Thunder is transferred to a small town in the desert. He learns that the corrupt deputy is paid by the drug mob. To protect himself, the deputy sets a trap for Thunder and gets him convicted as dealer. Thunder manages to break out of the brutal prison camp and takes bloody revenge. However he cannot sufficiently protect his pregnant wife.
An archaeologist opens an Egyptian tomb and accidently releases an evil spirit. His young daughter becomes possessed by the freed entity and, upon their arrival back in New York, the gory murders begin.
A female rock band acquires an infamous composition by Niccolò Paganini that was used in satanic rituals. When the band decides to record the song and film a video in Paganini's old mansion, the spirit of the deceased composer is summoned and the band unlocks a portal to Hell.
Girls' dance instructor Claudia Gambetti takes over the boy's gym class after gym teacher Martorelli breaks both his legs owing to one of his student's pranks. Soon both teachers and students are interested in learning more of Claudia's athletic dance moves. Director Fiorontori has made some debts betting on horses and wants Claudia to win a disco competition to balance the school budget, too. When the boys team are invited to face off against their superior Russian counterparts, Claudia calls in her dancing girls to be used as a secret weapon.
A maniac butchers a fashion model on a Caribbean island and leaves the body to be eaten by rats. The model's sister suspects something isn't quite right with the police investagation and decides to go snooping on her own. With her friend, Fred, their investagations lead them to an unknown part of the island where they discover a monstrosity of a rat like man. The creature is killed by Fred, but the true horror of it's nature is just beginning...
A group of environmentalists arrives at a faraway tropical delta where toxic waste is being dumped. However the water also hides a giant crocodile. The corrupt local officials don't help much either.
A young man buys two horses at an Arizona race track but fails to get a receipt. Later, when riding across the land of a rancher named Robeson, he's accused of stealing the two horses. Unable to prove ownership, the young man is then sentenced to prison where he's forced to do chain-gang type work. He escapes, is recaptured, and escapes again as he tries to locate the man who sold him the horses.
Two mercenaries help wandering caravans fight off an evil and aimless band of white-clad bikers after the nuclear holocaust.
The daughter of a star quarterback is falsely accused of drug smuggling while visiting a small Caribbean island. After his attempts to get her out of jail fail, his coach and teammates show up in full football gear and armed to the teeth, ready to free her by any means necessary.
A ragtag group of people have to fight extermination squads amid their ruined city.
The Caribbean swamps which is to be made into a holiday resort is terrorized again by a second monstrous crocodile which is killing off anyone unfortunate to be on the water.
A fitness instructor marries a traumatized, crippled woman who suffers from PTSD and is tormented by a traumatic event that happened in her past. What is even more unfortunate is that her marriage is part of her maniac husband's evil scheme to kill her for her money. It isn't long before the formula is put into action and the gory body count starts to mount.
Anthony is in the Phillipines visiting his father. He inadvertently interferes with the affairs of local gangster Quino, who also happens to be a champion Karate fighter. After embarrassing Quino near a local tournament, Anthony is beaten up and left for dead. An old monk nurses Anthony back to health and teaches him the ways of martial arts so he may go back and fight Quino again.
An accident causes the activation of the top-secret Cyber Warrior or 'Cyw' before his programming has been completed. Concerned that the Cyw may fall into the hands of enemies, prove unable to control or simply receive unwanted attention from the public or foreign powers, the military dispatches a crack squad led by Colonel Hammer to bring back the Cyw one way or another. (from Giallo Fever blog)
The danger of any movie series that spans several sequels is that you've got a lot of backstory to catch people up on who might not have seen or remembered what happened in the previous outings. For instance, what happened in the first five Karate Warrior movies? This dude acquired a super powered punch that allowed him to beat up a cow. What now? Clearly, we have a lot of catching up to do with Karate Warrior Anthony!
Two detectives are hired to discover if a rich industrialist is having an affair. The detectives pose as a gay butler and as a female cook in order to spy on all of the happenings within the house.