Black Orchid [1953] [DVD]

Research doctor Ronald Howard and his wife, Mary Laura Wood, are not getting along. Her sister, Olga Edwardes has his affection and Miss Wood bitterly accedes to a divorce... noting, when all is done, that the law prevents them from marrying while she lives. She is pretty shaky, so he gives her a draft of medicine, and she exits.... to stumble in front of a lorry that can't stop..