A young woman, goes to a party. For a good evening, she asks her drug dealer some pills. He gives them but offers , to, a warning about their effect and manner to be cool in a middle of potential hallucinations - drug effect.
He has right but, like in each reasonable horror, his warning has not exactly effect.
The fear grows up, the new warning, in essence the same, offered by the guest has not, again effect, paranoia is present in all its beauty and it becomes source of a tragedy .
The last scene , in ironic manner, demonstrates exactly the absence of effect hoped by young woman from pills.
In essence, a film reminding the attitude about others and the fears who are only encouraged by fake solutions.