Still of the Night (1982)

After a patient under his care is discovered dead, Dr. Sam Rice finds himself entangled in a web of mystery and danger. When questioned by the police, he remains tight-lipped, but his resolve is tested when the alluring mistress of the deceased seeks his help. Despite the risks involved, Rice can't help but be drawn to her, even as suspicions swirl around her. Feeling the heat from the authorities, Rice takes matters into his own hands, embarking on a perilous journey to uncover the truth. Little does he know that the shadows hold a deadly secret, and his own life is now on the line.