Following his assignment to the coastal town, the former detective delves deeper into the mystery surrounding a missing young woman from an affluent family. At the estate, he encounters a lady bearing an uncanny likeness to someone from his past, who urgently requests his aid in searching for her absent elder twin. Her father's grim insistence that the sister has long been dead raises unsettling questions about what is real and what is imagined. Amid whispers of a horrific unsolved killing spree, the lines between fact and fabrication grow ever thinner in the post-war setting.