The Screaming Skull (1973)

Only the taste of justice - and blood - will quiet

Constantly demeaned by his wife, Helen, after the death of their son, Dr. Luke Pratt devises a scheme to do away with her, too. But if he thinks that will silence her, he has another think coming. Now taunted by her grimacing skull, he goes slowly mad and must find a way to get rid of her... again.