Ramón and Céline are a young couple that attended a concert at the Bataclan theatre in Paris on the fateful night of November 13, 2015. They survive the attack, but when they leave the theatre, they are no longer the same. That night leaves a deep scar on both their lives and each tries to cope.

Famed architect Jeremy Angust is approached on his trip to the Paris Airport by a chatty girl named Texel Textor who needs a ride. He obliges and after they part ways at the airport entrance, he misses his flight. As he settles in the lounge, he encounters the mysterious young Texel again, who insists on telling her strange story — and the conversation grows stranger and more twisted until it turns sinister and deadly.