Diabolically Yours (1967)

Having no recollection of his past after a nearly fatal car crash, bruised and hospitalised Georges Campo no longer recognises his entourage, and especially Christiane, a beautiful woman who swears she is his wife. Back in home, things are even more complicated, as horrible nightmares and eerie voices start haunting clueless Georges, driving him insane. Now, seemingly random, nevertheless life-threatening situations endanger Georges' already fragile health. Is someone, indeed, trying to finish what he started? If that is the case, who is behind amnesiac Georges Campo's diabolical extermination scheme?