Piranha (1978)

Years after a terrible boating accident, Angela is sent to Camp Arawak where a series of bizarre and violent "accidents" begin to claim the lives of various campers.

A baby alligator is flushed down a toilet and survives by eating discarded lab animals that have been injected with growth hormones. The now gigantic animal escapes the city sewers and goes on a rampage, pursued by a cop and a big-game hunter.

College student Lucy and her friends spend their vacation at her family's home in Hawaii, which includes her pet chimpanzee, Ben. However, when Ben contracts rabies after being bitten by a rabid animal, the group must fight for their lives in order to avoid the now-violent chimp.

In the Oregon mountains, a pair of hunters encounter a machete-wielding killer in an abandoned church. Meanwhile, five campers arrive to examine some property one of them has inherited but are warned by the forest ranger not to venture forth. Soon after they set up camp, they begin hearing strange noises, encounter a mysterious singing girl and start disappearing one by one.

A teenager's weekend at a lake house with her father takes a turn for the worse when a group of convicts wreaks havoc on their lives.

When a group of tourists stumble into the remote Australian river territory of an enormous crocodile, the deadly creature traps them on a tiny mud island with the tide quickly rising and darkness descending. As the hungry predator closes in, they must fight for survival against all odds.

When the seaside community of Amity finds itself under attack by a dangerous great white shark, the town's chief of police, a young marine biologist, and a grizzled shark hunter embark on a desperate quest to kill the beast before it strikes again.

A caretaker at a summer camp is burned when a prank goes tragically wrong. After several years of intensive treatment at hospital, he is released back into society, albeit missing some social skills. What follows is a bloody killing spree with the caretaker making his way back to his old stomping ground to confront one of the youths that accidentally burned him.

Chaos breaks out in a small Maryland town after an ecological disaster occurs.

Two doctors find their graveyard shift inundated with townspeople ravaged by sores. Among the wounded is Cherry Darling, a dancer whose leg was ripped from her body. As the invalids quickly become enraged aggressors, Cherry and her ex-boyfriend El Wray lead a team of accidental warriors into the night.

Five doctors go camping in the remote woods of Northern Ontario. When their boots are stolen they begin to suspect they are being stalked.

A savvy and free-spirited surfer is abducted by a shark-obsessed serial killer. Held captive on his boat, she must figure out how to escape before he carries out a ritualistic feeding to the sharks below.

Juvenile delinquents are sent to a small British island after a fellow prisoner's death, where they must fight for survival.

Researchers on the undersea lab Aquatica have genetically altered the brains of captive sharks to develop a cure for Alzheimer's disease. But there's an unexpected side effect: the sharks got smarter, faster, and more dangerous. After a big storm damages their remote research facility, they must fight for their lives.

Four kayakers take the wrong river into a jungle inhabited by a tribe of merciless cannibals.

Two journalists set out to document their friend's journey to reunite with his estranged sister. They track her to an undisclosed location where they are welcomed into the remote world of "Eden Parish," a self-sustained rural utopia composed of nearly two hundred members and overseen by a mysterious leader known only as "Father." It quickly becomes evident to the newcomers that this paradise may not be as it seems. Eden Parish harbors a twisted secret. What started as just another documentary shoot soon becomes a fight for survival.

Grindhouse combines Robert Rodriguez's Planet Terror, a horror comedy about a group of survivors who battle zombie-like creatures, and Quentin Tarantino's Death Proof, an action thriller about a murderous stuntman who kills young women with modified vehicles. It is presented as a double feature with fictitious exploitation trailers preceding each segment.

In Arborville, California, three high school students try to protect their hometown from a gelatinous alien life form that engulfs everything it touches.