Dark moonlight

Cindy Wren killed someone by accident fifteen years ago while saving Yann Pike. After getting out of prison, she discovers that her younger sister, Snow Wren, who had been working at Harlan Shaw's house, has suddenly vanished. To find out what happened, Cindy infiltrates the Shaw household as a maid and uncovers the murders committed by Harlan and his wife Vivian. While avenging her sister, she crosses paths with Yann again. She initially plans to use him to bring down Harlan, but as they work together, they fall for each other and ultimately join forces to bring the guilty to justice, rekindling their relationship after everything is finally over.