Patrick Nogueira, 19, murdered his uncle Marcos, his wife Janaina and their two children. He dismembered them and put them in several garbage bags that he abandoned in the living room of his villa.
Do not tell anyone, the investigative documentary series that premieres on Sunday Atresplayer Premium, asks whether that atrocity could have been prevented. "This crime has an important social dimension because of the dilemmas and debates it puts on the table," says producer Luz Aldama.