On the last day of his life, he lunged violently at one of his sisters and fell senseless, foaming at the mouth, leading some to venture that he may have suffered from a rare type of epilepsy. He had never had such a violent attack, according to the family.
In August 1991, when she returned home after going out with her boyfriend, she suffered a seizure and entered the Gregorio Marañón Hospital in a coma. He never woke up again. The cause of death was attributed to "pulmonary asphyxia", although his doctors believed it to be "sudden and suspicious".
The following year, in 1992, the family erected an altar to Estefanía in the house. Everyone began to experience strange events, including the spontaneous combustion of a photograph of the deceased, an event that occurs in the film at a different time, and the nocturnal visit of a tall, black figure.