In 2013 a psychiatric clinic which served for more than 50 years caring for patients in Mexico City was demolished. A few months before its demolition, four young men came to investigate the clinic, determined to discover the truth about rumors of strange and paranormal events, recording everything with which they encounter. Today, the whereabouts of these four young men are unknown, remaining only fragments of their recordings.
Bego, a housewife in a mid-life crisis, lives bored and afraid of being inconsequential, however, her life evolves into a mysterious game once she enters into a cult that preaches three days of darkness...
Chucho is taken care of by his mother Alma for a few days, during which they will grow closer.
