Qohen Leth is a reclusive computer genius living in an undetermined future, who works as a programmer for the Orwellian organisation Corporation ManCom. He resides in an ancient derelict church, awaiting a phone call that will give meaning to his life. When the mysterious 'Management' summons him to crack the Zero Theorem, a formula that could answer everything, and the seductive Bainsley and the turbulent Bob barge into his controlled universe, Leth's existence is set to irrevocably change.