Under the ground

After fulfilling their dream by working with the police department when they solved Garret Field's case and being the first hired women detectives in history they decide to take a vacation after nonstop months of work. Adelaide and Atina choose Paris to be their vacation's destination , aiming for the perfect vacation, but their trip takes a different turn when they get trapped in an underground museum with a bunch of people they don't know. They become certain that they're trapped on purpose when they find a radio set on the museum ground making it clear that the museum will be closed due to maintenance works. They suddenly find people disappear and getting killed. Will they be able to get out of the maze in that museum before they all get killed? And will they be able to know the reason why they're trapped?