Date: Maybe the beginning of the 90s.
Country of origin: Don't know, western actors, Hungarian dubbing.
On the set of a film a blond actress is fatally wounded by a pistol that was supposed to fire blanks.
She is replaced by another blond actress, she's the lead from then on. She's in a troubled relationship with a man.
Later her mother is found murdered, lying in her own bathtub.
At one point she's running from the murderer in a house, the chase ends in the attic where it's revealed that her boyfriend is the killer.