The film is about two drug users who hide out in an abandoned farmhouse to prepare a huge batch of crystal meth, only to be tormented by terrifying visions.

After stealing the precursor chemicals needed to illicitly produce crystal meth from bikers, a young couple decides to set up a temporary drug lab and make a large batch of the drug, in hopes of making a large profit.

The couple is already stressed about the risk of being found by the bikers they stole the raw drug materials from, so taking meth only increases their anxiety.

The two drug-makers, nicknamed "cookers" in drug subculture slang, end up getting increasingly paranoid in the dark, isolated house.

When a friend (who visits to bring supplies) tells them an urban legend about a horrible murder of a little girl in the old house, the couple gets increasingly afraid.