An old "friend"

Medical research, you are working.

Co-worker, James and Amanda. Husband and wife who have funded your research. Also are brilliant scientists who have studied and predicted this to happen. Have background in ancient civilization. Became scientists to combat this event that was inevitable in civilization.

It's been 5 years since you completed your research paper and have been working along side them for to develop a cure or a way to prevent the "addiction" from spreading.

A nice light dinner to celebrate a major breakthrough in the research and got public funding/recognition.

you find an old friend at your doorsteps....