20 best shows like Alligator (1980)

Helix is an intense thriller about a team of scientists from the Centers for Disease Control who travel to a high-tech research facility in the Arctic to investigate a possible disease outbreak, only to find themselves pulled into a terrifying life-and-death struggle that holds the key to mankind's salvation...or total annihilation.

After a fortuitous drug bender saves his life, addict Jake ventures out into the quiet streets… unaware that most of the world already died in their beds. Now, battling sleepless fatigue and encroaching delirium, Jake teams with a scrappy teenager, overnight doctor and red-eye pilot to search for answers… and just maybe find a way to sleep again.

In the year 2093, a team of scientists aboard the Nightflyer, the most advanced ship ever built, embarks on a journey to find other life forms. Their mission takes them to the edge of the solar system, and to the edge of insanity, as they realize true horror isn't waiting for them in outer space—it's already on their ship.

When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.

Dominion is an epic supernatural drama set in the near future. Specifically, 25 years after "The Extinction War," when an army of lower angels, assembled by the archangel Gabriel, waged war against mankind. The archangel Michael, turning against his own kind, chose to side with humanity. Rising out of the ashes of this long battle are newly fortified cities which protect human survivors. At the center of the series is the city of Vega, a glistening empire that has formed from the ruins of what was once Las Vegas.

FBI agent Audrey Parker arrives in the small town of Haven, Maine to solve a murder and soon discovers the town's many secrets—which also hold the key to unlocking the mysteries of her lost past.

A post-apocalyptic story about a botched U.S. government experiment that turns a group of death row inmates into highly infectious vampires, and an orphan girl who might be the only person able to stop the ensuing crisis.

Tales of science fiction, fantasy and the occult, exploring humanity's hopes, despairs, prides and prejudices in metaphoric ways. Next stop ahead The Twilight Zone.

Four young friends' paper routes are disrupted on Hell Day 1988, when they unknowingly time travel to 2019. While searching for a way home, they come face-to-face with their adult selves and learn how to work together to save the world.

When an explosion at a top-secret government lab injures an elderly janitor, no one could have expected the terrifying results. Exposure to mysterious chemicals causes him to undergo a bizarre transformation. He is slowly... incredibly... growing younger every day. Now, a ruthless CIA assassin will stop at nothing to take him prisoner and turn him into a government guinea pig. With his future on the line, the janitor goes on the run with his wife and a feisty female agent. All the while, he continues to transform... into a being with powers that are as deadly as they are unimaginable.

Each episode transports the audience to worlds of wonder through the lens of today’s most imaginative filmmakers, directors and writers. A reimagining of the original anthology series by Steven Spielberg.

R. L. Stine's The Haunting Hour is a Canadian/American original anthology horror-fantasy series, with episodes each half an hour long. The series is based on The Haunting Hour: Don't Think About It Movie, and the books The Haunting Hour and Nightmare Hour anthology by R. L. Stine.

Grace is a religious woman who lives in an old house kept dark because her two children, Anne and Nicholas, have a rare sensitivity to light. When the family begins to suspect the house is haunted, Grace fights to protect her children at any cost in the face of strange events and disturbing visions.

We love to play games with our children. But what happens when someone else starts to play with them too? Someone we don't know. Can't see. Can't hear. In The Whispers, someone or something -- is manipulating the ones we love most to accomplish the unthinkable. An unseen alien force has figured this human weakness out. They have invaded earth and are using our most unlikely resource to achieve world domination – our children.

Set in a near-dystopian future, a former cop is forced to take part in a death race where the cars run on human blood. You lose a leg and you lose your head.

A young boy's horror comic book comes to life in this anthology series of terrifying tales.

Three years after the zombie virus has gutted the country, a team of everyday heroes must transport the only known survivor of the plague from New York to California, where the last functioning viral lab waits for his blood.

CDC researcher Abby Arcane investigates what seems to be a deadly swamp-born virus in a small town in Louisiana but she soon discovers that the swamp holds mystical and terrifying secrets. When unexplainable and chilling horrors emerge from the murky marsh, no one is safe.

Firestarter: Rekindled is a 2002 television miniseries and the sequel to the film adaptation of the Stephen King novel Firestarter. It stars Marguerite Moreau as now-grownup Charlie McGee, Danny Nucci, Dennis Hopper, and Malcolm McDowell as Charlie's old nemesis from the original story, John Rainbird.It debuted as a Sci Fi Pictures two-night miniseries on the Sci Fi Channel.

After a deadly plague kills most of the world's population, the remaining survivors split into two groups - one led by a benevolent elder and the other by a maleficent being - to face each other in a final battle between good and evil.

Monster hunters Fred and Deloris Allen tangle with evil ... and family drama with their teenage twins. From the comics by Steve Niles and Damien Worm.

Set in a single room of an average American motel, each episode tells a different story of the assorted characters who pass through it.

Living his best life in post-apocalyptic LA, a slacker strives to find the girl of his dreams while outwitting mindless ghouls and cliquish gangs.

The anthology horror series follows 25-year-old Atticus Freeman, who joins up with his friend Letitia and his Uncle George to embark on a road trip across 1950s Jim Crow America to find his missing father. They must survive and overcome both the racist terrors of white America and the malevolent spirits that could be ripped from a Lovecraft paperback.

A heroic group of teens sheltered from the dangers of the post-apocalyptic world receive a message that inspires them to leave the safety of the only home they have ever known and embark on a cross-country journey to find the one man who can possibly save the world.

In a world mostly wiped out by the plague and embroiled in an elemental struggle between good and evil, the fate of mankind rests on the frail shoulders of the 108-year-old Mother Abagail and a handful of survivors. Their worst nightmares are embodied in a man with a lethal smile and unspeakable powers: Randall Flagg, the Dark Man.

A skeptic is forced to work with a firm believer of the paranormal on unexplained occurrences in Los Angeles.

After a rash of disappearances and a likely murder, an inquisitive, young female production assistant on a wildly popular television show called Cult joins a journalist blogger in investigating the rabid fans of the series who might be re-creating crimes seen on the program, in real life.

What did the world look like as it was transforming into the horrifying apocalypse depicted in "The Walking Dead"? This spin-off set in Los Angeles, following new characters as they face the beginning of the end of the world, will answer that question.

An anthology series of stand alone episodes delving into horror myths, legends and lore.