A Quiet Place in the Country (1971)

After enduring a series of nightmares, painter Leonardo Ferri (Franco Nero) decides he needs to get out of Milan. His agent and sometime lover, Flavia (Vanessa Redgrave), is able to find a remote villa for him to work in, but country life proves no less turbulent than life in the city. A supernatural presence haunts the villa, and after some research Leonardo comes to believe it's the ghost of a mysterious countess killed during a World War II air raid.