Muted is a Spanish psychological thriller series that explores the complex aftermath of a parricide. Centered on Sergio Ciscar, who, after six years of detention, remains silent about the incident, the series delves into themes of trauma, family secrets, and the search for truth. A young psychiatrist overseeing his case uncovers layers of intrigue, including experiments and police corruption, all while grappling with her concealed affection for Sergio.