After exposure to radiation, an atomic research scientist finds himself changing into a murderous, lizard-like creature every time he is exposed to sunlight.

After stealing a fortune from the Russian mob, Alex Langdon tries to hide out in a remote cabin but discovers that the area is home to a dangerous species of mutant lizards that have developed a taste for human flesh.

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.

Genetically-engineered Komodo dragons have become ginormous creatures hunting people on a remote tropical island. A small group of scientists must stop the dragons before they escape the island and destroy the rest of the world.

A group of passionate filmmakers venture deep into the mysterious underground Banning Tunnels, where they discover a lost city of cannibalistic, half-human, half-lizards.

A teen is locked in a room with a monitor lizard

Unfairly overlooked employee Liz wants to become a successful corporate creature.

A group of geologists is attacked by gecko fiends that possess them, transforming them into zombies. Kwan travels there to give lectures and is possessed by the evil gecko spirit, However, her skeptical boyfriend doctor doesn't understand what's happening to her.

A young suitor loses his girlfriend to a wealthy businessman. At first he's angry. Then in a fit of depression, he goes to the sea shore where he finds lizards. Immediately he puts the lizards into a bag and takes them home. Then he becomes obsessed with ladies dirty underwear and he steals six or seven "tainted" ones from public restrooms and brothels. At this point the man mixes the juices from the underwear with a special "aggressive compound" and then injects the fluid into the lizards. The little reptiles (now hooked on "love juice") become soldiers in his personal battle against females. "I hate women!" he screams, holding helpless victim's legs apart allowing the little creatures to gain entrance. Lots of women die, driven mad with sexual ecstasy and pain, while the misogynist psycho howls with laughter.

When a group of students search for mythical house lizards, one is bitten and becomes possessed. Now he's not only able to control the lizards but he finds himself transforming into one as well.

An alien sent to study humans on Earth faces inhumanity when it stumbles upon a college party.

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