Lluís Arcarazo is the creator of this fiction - set in Barcelona during the confinement and based on a true story - which narrates the investigation of two homicide detectives to find a serial killer who has chosen as his victims the weakest link in society: the homeless.

David Verdaguer and Ángela Cervantes are the protagonists of El Mal, whose filming is taking place these days in different locations in Barcelona. Also notable in the cast are Àlex Brendemühl and Melina Matthews, as well as the young Roger Guitart and Victoria Kantch. Marta Pahissa is the director of all episodes.

The Mediapro Studio produces and 3Cat co-produces this series that will premiere on TV3 and the 3Cat platform.