A burned body hangs in flames from Gaudís iconic La Pedrera in Barcelona, pulling suspended inspector Milo Malart back to duty alongside deputy inspector Rebeca Garrido to hunt a macabre killer. As ritualistic murders escalate amid political pressures and the Popes visit, they uncover deep corruption tied to the citys dark underbelly. This atmospheric Spanish thriller probes trauma, justice, and societal shadows in a gripping six-episode limited series.