The Pyjama Girl Case (La ragazza dal pigiama giall (1978)

Two seemingly separate stories in New South Wales: a burned, murdered body of a young woman is found on the beach, and a retired inspector makes inquiries; also, Linda, a waitress and ferry attendant, has several lovers and marries one, but continues seeing the others. The police have a suspect in the murder, but the retired inspector is convinced they're wrong; he continues a methodical investigation. Linda and her husband separate, and there are complications. Will the stories cross or are they already twisted together?