My current idea of what will happen next is:

1. Your character enters the cafe. Maybe with friends?
2. Spencer notices the first signs of sleeping gas and hastily exits the cafe. Elena probably notices it too, and does the same?
3. One former contact of theirs greets them outside the cafe, and asks them for one last job. Killing the Undying Man. And all the supernatural baggage that comes with the implications of an immortal man.