Убиецът... и по телефона (L'assassino... e al telefono) - Трилъри, 1972

The film focuses on a woman named Eleanor. Eleanor is suffering from amnesia. Her husband was murdered five years previously and she passed out at the sight of an imposing bald man named Ranko. She wakes from a coma and has blanked out the last five years of her life and doesn't recognise her new husband George. It also just happens that Eleanor is about to appear in a stage play, but ends up having to ask her sister to replace her. Eleanor continues to have nightmares about the mysterious Ranko...