Marinette Dupain-Cheng and Adrien Agreste are two normal teenagers who live normal lives until one day when a villain named Hawkmoth shows up to terrorize Paris, looking for the Black Cat and Ladybug kwamis. Marinette and Adrien meet the two kwamis and get transformed into Chat Noire (Marinette) and Beetle (Adrien) to fight the acuma that Hawkmoth has created to take their kwamis. They become Paris' beloved heroes and protect Paris from Hawkmoths attacks.
But hawkmoth may not be the terrorist who everyone thinks he is. In the meantime something far eviler lurks in the shadows, preparing to strike when the heroes least expect it. They will need to take a part in a game of mind trickery that has been created for them and come out as victors... before its too late.