A clumsy local political campaign fights to avoid damage from an enigmatic Internet rumor spread about their candidate 5 days before the election.

A disgraced local TV news reporter enlists the help of a wannabe journalist and a career film student to produce a documentary to revive his career.

Over the course of a decade, editors of the San Francisco Chronicle entice themselves in the murders of the Zodiac Killer. However, as time runs its course, interest in the case dwindles in the eyes of the professionals. The Killer stops interacting with the public. However, believing he has the answers, an amateur cartoonist from the initial sightings races against time to prevent what he believes is another murder.

The film centers on an edgy midnight talk radio host who solves people's moral dilemmas. When a mysterious caller reveals that Paul and those closest to him are trapped in a deadly game, the night won't end before terror strikes and shocking secrets come to light.