In order to save her son's life, Ana embarks on a quest to find a powerful stone from the Zone of Silence in Mexico. Someone finds out the power the stone possesses and believes it is a power worth killing for.
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.
Lety, a beautiful young woman, has an extremely jealous nature that is irritating her handsome, easy-going fiancé, Joaquin, Lety enlists her friend Martha to try and trap Joaquin. Joaquin, annoyed at Lety's attempt to catch him, decides to teach her a lesson, and disappears. Panicked, Lety tries to find him and realizes that she had the perfect man all along.