Movies that feel likeAltered States (1980)

An unhappy middle-aged banker agrees to a procedure that will fake his death and give him a completely new look and identity; one that comes with its own price.

First-time father Henry Spencer tries to survive his industrial environment, his angry girlfriend, and the unbearable screams of his newly born mutant child.

A teenage boy and his friends face off against a mysterious grave robber, known only as the Tall Man, who employs a lethal arsenal of unearthly weapons.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

The residents of San Francisco are becoming drone-like shadows of their former selves, and as the phenomenon spreads, two Department of Health workers uncover the horrifying truth.

A scientist trains a man with an advanced telepathic ability called 'scanning' to stop a dangerous Scanner with extraordinary psychic powers from waging war against non-Scanners.

Arizona ants mock the food chain on their way to a desert lab to get two scientists and a woman.

Japan is thrown into a panic after several ships are sunk near Odo Island. An expedition to the island led by Dr. Kyohei Yamane soon discover something far more devastating than imagined in the form of a 50 meter tall monster whom the natives call Gojira. Now the monster begins a rampage that threatens to destroy not only Japan, but the rest of the world as well.

A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything from spiders living in the cellar to his beloved cat.

In 1965 Mexico City, Flavia, a wealthy yet lonely schoolgirl, befriends Veronica, a young orphan girl who has a fascination with witchcraft. Veronica convinces Flavia that she is a real witch and forces her to be her assistant. The children's games gradually become more serious and Veronica demands more from Flavia.

An architect, visiting an English country house, realizes the other guests are familiar from his recurring nightmare. When they share their tales of the supernatural, he is filled with a growing dread.

After a man dressed as Santa Claus brutally murders Billy Chapman's parents, little Billy then endures the cruelty of a sadistic nun at his orphanage. Years later, when adult Billy has to fill in for an absent in-store Santa, his childhood trauma brings him to the breaking point.