Starlight is getting used to being forgiven for the crimes she has caused, so to help Twilight’s friends get more used to her, they head to Paris, Prance, for a little getaway. However, they learn about multiple disappearances and incidents that occur and a dark history behind the city of lights and are thrown into an investigation they will never forget.

Two monsters who were shunned by ponykind, a split personality causing carnage and mayhem, and an invisible criminal on the run are now hiding in Paris. Their stories and origins will be revealed, and the story will change.

Based on the classic Universal Monsters