L'Ascenseur [The Elevator]

In recent years, a large number of disappearances have occurred in this Parisian building. Each victim had in common to have entered his elevator... without ever coming out. The forces of order were dispatched, but no squadron returned to the light of day. This mysterious case was closed without follow-up, and the building left abandoned. By necessity, the police finally decided to ask for help from the "Black King", elite secret agents renowned for their success in perilous missions and of which you are a part. And it is you that your superiors have decided to send into the field. In the footsteps of the detectives of the greatest thrillers, will your team be the first to solve this mystery?