Based on

Movies like The Vampire's Coffin (1958)

In Sierra Negra, graverobbers Barraza and Mendoza steal the coffin of Count Karol de Lavud, before heading to a hospital. Barraza sees a medallion upon the coffin's opening and demands more money from Mendoza. Meanwhile, Marta González, recovering from traumatic events, works as a nurse with Dr. Saldívar. When Barraza removes the wooden stake in order to steal Lavud's medallion, the vampire returns to life and begins a crime spree, hunting down Marta to marry her.