After accepting temporary work in a laboratory Cesar begins to notice strange events related to the treatment of a patient with the number 27, this disturbs him the extent of causing insomnia and hallucinations. Isela and Marcos, his coworkers attribute this to the Cesar fatigue, however the real reason for these views is more real and dangerous than they think.

FEDERICO, a man who has lost everything in life, creates a new religious cult kidnaps FERNANDO, a former business partner, whom trying to leave as heir of worship amid a slaughter justified by their own past tragedies.