The series recreates the life of the Spanish scientist Miguel Servet from his birth until his execution for blasphemy in 1553.

A woman is found dead on the shores of a tourist beach in Vendrell; one of her breasts amputated. The bust appears, soon after, on the work table of Judge Olvido. The old inspector Méndez then begins a laborious investigation that will take him from the slums of Barcelona to the richest areas of the city...