The storyline kicks off in 1976, when 16-year-old Bea (played by Alicia Falcó) is swept up in the winds of change blowing across Spain, as she teams up with the women demanding the approval of the right to abortion. This act of rebellion will intertwine with an unexpected feeling when she meets Miren (played by Elena Tarrats), with whom she strikes up a very special friendship. All this will turn that summer into a decisive stage of her life.

馬德里發生一起少年謀殺案，警探瑪麗亞盧伊茲調查發現，受害者與潘普洛納市另一名失蹤少年有關，兩人都曾參加由一間涉嫌虐童的學校舉辦的夏令營。瑪麗亞於是與記者盧納聯手尋找線索，逐步揭開案件背後的駭人真相...