When Monica decides to save her marriage, she turns to a couples therapist, unaware that she is precisely the person with whom her husband, David, had an affair the night before. With no other option than to have to attend the therapy, David begins to live a lie that is difficult to maintain, while Monica must hide her ghosts, financial fraud style, all while trying to keep her firm, her clients, and their relationship afloat for their two sons, Diego and Gael, twins who keep getting into trouble.

When his child is possessed by an unrelenting evil, a father hires three expert exorcists to purge the demon and save his family. But this demon is merely the gatekeeper to a true hellion that will be unleashed on earth if the trio of exorcists fail.