Young Berenice (Martha Navarro) is a mystery to her fellow townspeople. A recent widow, she lives with her godmother and has a scar across her face. She and her sickly godmother, a money lender, leave their home only on Sundays and then only to go to church and to the movies. Through a chance meeting, however, Berenice meets Rodrigo, a handsome young doctor who awakens her dormant passions. As they begin an affair, it becomes clear to him that Berenice harbors some secrets. Director Jaime Humberto Hermosillo film, which won a handful of 1976 Ariel Awards, weaves a unique web of passion and suspense.