Marinette's life is perfect. Two loving parents, an amazing school, a wonderful best friend and a boy of her dreams. But what happens to that life when she goes missing without a trace? Dozens of people have suddenly disappeared from Paris, but nobody can figure out why. And with Ladybug under the radar as well, the entire city is panicking. It's up to Chat Noir and Rena Rouge to hunt down the victims and save them before time runs out, and the citizens are lost forever.