Two co-workers head out for a pub crawl to celebrate a 21st birthday and wake up in coffin-like tanks that a serial killer uses to drown his victims.

A coven of young women with incredible powers and difficult pasts discovers that they are able to make their every wish come true. Things, however, take a dangerous turn when they discover that their newly-found abilities come with a price and that they may not be as in control as they think.

A teacher at the Summer Street School, Miss Sidley is disturbed when one of her students tells her that, "Tomorrow a bad thing will happen." When she probes further into the matter, she discovers that aliens are taking over her students.