Things

Don and Fred decide to visit Doug, Don's brother, at his house. They are hoping for a casual catch-up and a beer. Unbeknownst to them, Doug and Susan have been involved in dangerous experiments led by Doctor Lucas.

In the living room they discover a book written by Aleister Crowley and a tape recorder playing a distorted voice. The eerie artifacts hint at occult influences behind the strange events. The mood grows tense as the recordings crackle to life.

Susan gives birth to insect-like creatures and dies in the process. The grotesque birth reveals the grim consequences of the experiments. Don and Fred watch in stunned silence as the house fills with a new, threatening presence.

The creatures attack and kill the family dog. The sudden violence shocks the men and confirms the danger within the house. Don and Fred steel themselves as they realize they are trapped.

Doug explains that he and Susan participated in experiments with Doctor Lucas to artificially induce pregnancy. He regrets their involvement as the situation spirals out of control. The revelation reframes the night's horrors as something more than superstition.

The power in the house goes out, plunging the rooms into darkness. The creatures begin to infest the house, attacking the men with increasing boldness. Don and Fred rely on flashlights to navigate the peril.

Don and Doug search the house with a flashlight, trying to locate the source of the disturbances. Every creak and shadow seems to conceal another threat. The tension escalates as they move from room to room.

In the basement, a creature attacks Doug from behind. Don tries to strike the creature with a hammer but accidentally bludgeons Doug instead. Doug dies, leaving Don stunned and filled with guilt and panic.

Don drags Doug's body upstairs and hides it in a closet to keep the creatures from devouring him. The claustrophobic space muffles the horrors as the house continues to crash around them. He steels himself to press on despite the growing nightmare.

Armed with a drill, Don wanders through the house, chasing a way to survive. He experiences visions of Doug still being alive, blurring the line between reality and nightmare. Eventually he collapses onto a couch, exhausted and haunted.

Fred reappears with a chainsaw, and Don finds a golf club to defend themselves. The two men fight back against the creatures, killing several in a brutal struggle. The house rattles with noise and screams as the battle continues.

The creatures reveal that they have eaten Susan's body, reducing her to bones. The horror deepens as the survivors realize the extent of the carnage. The threat grows more relentless as night wears on.

The creatures attack Fred and devour him as he pleads for help. Don is left to confront the mounting danger with dwindling options. The sense of impending doom dominates the night.

Doctor Lucas arrives at the house and is confronted by Don, who accuses him of causing the deaths. Lucas tries to stay calm as the situation spirals further. Tensions rise as the investigation into the experiments turns into a fight for survival.

The creatures attack Lucas; Don escapes the house and steps outside. A passerby accompanies him as they walk toward a car. Don asks, 'Are you sure this wasn't all a dream?' The film ends with a final twist: Don is seen back inside the house, alongside a bloodied but apparently living Doctor Lucas.