Kwan discovers her husband is married to another woman plus has a child with her. In retaliation she becomes romantically involved with a deadly snake (we don't know quite how that works since we haven't seen this) and a series of serpent deaths soon follow.

Explorers in Mexico uncover the ruins of an ancient snake-worshiping civilization. Celebration turns to horror when they awaken an ever-growing anaconda, starved of human sacrifices for centuries. Now, the team must band together to survive.
2025

A rap group on the verge of signing their first record deal is the city's only hope in a battle with a giant mutating snake monster.
2018

Snake Movie
2014

A genetically created Anaconda, cut in half, regenerates itself into two new aggressive giant snakes, due to the Blood Orchid.
2009
Ying Narintorn, a special forces officer manages to capture a terrorist. However, the latter will escape him quickly. At the same time, a very powerful laser system recently developed is being tested in the building, but the experiment will turn to disaster, causing a chemical reaction on a snake. Transformed into a real killing machine, the overpowering reptile now haunts the corridors of the complex ...
2007

FBI agent Neville Flynn boards a flight from Honolulu, Hawaii to Los Angeles, escorting a key witness to testify against a mob boss at an upcoming trial. An on-board assassin releases a crate full of hundreds of deadly venomous snakes in an attempt to eliminate the witness. Flynn and a host of frightened passengers and crew must band together to survive the slithery threat.
2006
Mek, Sooraya the Snake Haired Girl’s son, falls into a love triangle against his step brother Sok to win the heart of Chan, the daughter of a wealthy businessman. When he loses Chan to Sok, Mek transforms into a snake and impregnates Chan but Sok finds out and eventually fatally stabs Chan. Out of her womb burst hundreds of baby snakes that Mek, after killing Sok, raises as his babies thanks to a magic ring that transforms back into a human.
2006
Deep in the Ratanakiri province, a group of archaeologists find themselves lost in the forests when their tour guide is killed by a monstrous giant python. Forced to band together with a group of temple-hunting robbers, if they are to stand any chance of escaping the forest alive.
2005

A scientific expedition sets out for Borneo to seek a flower called the Blood Orchid, which could grant extended life. Meanwhile, they run afoul of snakes and each other.
2004

A group of American tourists heading down an African river make a brief stop at Snake Island, an island that has been virtually abandoned for years. When they end up getting trapped on the island overnight, they find thousands of deadly snakes intent on reclaiming the tropical island for themselves.
2002

A 'National Geographic' film crew is taken hostage by an insane hunter, who takes them along on his quest to capture the world's largest — and deadliest — snake.
1997

A woman is courted by a giant snake. The baby born from their love has hair made of small snakes. Local villagers disdain the mother and her daughter. The daughter grows and becomes a beautiful woman. Will she ever be happy and find the true love?
1995

A New York University professor returns from a rescue mission to the Amazon rainforest with the footage shot by a lost team of documentarians who were making a film about the area's local cannibal tribes.
1980

"Libidine" is quite peculiar erotic horror about a scientist, who performs some kind of experiment on his snake. His adolescent daughter Anna has an erotic relationship with the snake.
1979

After a swift courtship, wealthy bachelor Judas Carmichael invites a topless dancer to live with him and his abundant collection of exotic snakes.
1976
Angered by the constant bad luck that has befallen her family, the Snake Girl decides that enough is enough and uses her curse to take revenge on her enemies.
1973

Jason Crockett is an aging, grumpy, physically disabled millionaire who invites his family to his island estate for his birthday celebration. Pickett Smith is a free-lance photographer who is doing a pollution layout for an ecology magazine. Jason Crockett hates nature, poisoning anything that crawls on his property. On the night of his birthday the frogs and other members of nature begin to pay Crockett back.
1972

In the Olden Tymes, Count Regula is drawn and quartered for killing twelve virgins in his dungeon torture chamber. Thirty-five years later, he comes back to seek revenge on the daughter of his intended thirteenth victim and the son of his prosecutor in order to attain immortal life.
1967

In the early 20th century a village experienced a series of inexplicable murders. All the victims were young men who had been turned to stone. The perpetrator of these deaths was a being so repulsive that she transformed the onlooker using the power of her deadly stare. Much of the time the creature took the form of a beautiful and seductive woman, but during periods of the full moon she becomes a living horror, vicious and deadly. A professor has come to investigate the deaths, bringing with him his beautiful assistant whose knowledge of the Gorgon is more intimate than anyone would ever realise.
1964

Three people driving into Los Angeles for a Dodgers game have car trouble and pull off into an old wrecking yard where they are held at bay by a bloodthirsty psycho and his crazy girlfriend.
1963