FAQ for
Volver (2006/I) More at IMDbPro »

Turns out Irene (Carmen Maura), the mother, isn't dead, but has been hiding all these years in the aunt's house. She and Raimunda (Penélope Cruz) confront their past: Irene's husband slept with Raimunda and Paula is his daughter (ie. Paula is Raimunda's sister as well as daughter); Agustina's mother had an affair with Irene's husband and she was killed with him in the fire, which Irene started after finding out the truth about Raimunda's sexual abuse. Mother and daughter (Irene and Raimunda) are finally reconciled.

Paula finds out what her mother did with Paco's body and Irene goes to take care of dying Agustina, who believes her to be a ghost.

No; she was simply hiding in Aunt Paula's house since she faked her own death.

It means "return". The V's should be pronounced halfway between the English V and English B, so it sound something like "bole-bare".