Researcher Annie Le walks from Sterling Hall to another campus building at 10 Amistad Street, That's where her research laboratory is located. She is caught on video entering the building. There is a fire alarm that day, but Annie is not seen on video again. The search begins but is this a missing person case or a murder case? Investigators are following every lead they can find. The difference though between the two investigations could hinder its progress, and does this mean valuable clues are lost?