UNIC investigates the brutal murder of Adrián, a teenager tortured in a macabre way. They soon find a disturbing pattern: three teenagers murdered with chemical burns, fractures and deep wounds. The leads point to local gangs but also reveal that the victims shared stories of abuse in the same neighborhood. The evidence points to a laundress that tortures and kills teenagers to "purify them" before they enter the life of crime. With no remorse, she thinks she is doing justice. Neighborhood hero or heartless killer?
