In the '90s, a mystery emerged in Lisbon after 22-year-old Maria Valentina was found lying in a pool of her own blood behind a shed. She had been strangled , disembowelled and was missing her heart, liver, intestines and genitalia. The police launched inquiries, stating they had never witnessed a victim who had been left in such a condition "in over 30 years". Officers identified her as a sex worker who was known for battling drug addiction, but could not uncover any evidence that would lead to