**1. Introduction**

Humans have bravely faced this magically cloaked organism since the past till present; and their efforts to deal with it in the future are still going on strong. They are dwelling worldwide among livestock, humans and free-living animals. The true color of Chlamydia will be discussed as how secretively it has spread its roots among humans playing constant hide and seek with us without our suspicion. One chapter is never enough to talk about Chlamydia and how it might soon get the status of being omnipresent. Our hope is not only to touch upon its journey from past to present as concisely as possible, but also to express our views about conjoined future with us. Before talking about the present scenarios, we need to understand about the organism first.
