A lone girl, carefree and unaware of what fate has in store for her, casually strolls on a busy market street. CID team is called as a ton of witness saw her collapsing of the footpath with no apparent reason. The team is shocked as none of the witnesses saw or heard anything happen around the area. More surprising facts come forth as the autopsy reveals that she was killed from a gun shot at close range. Will the CID bring this invisible murderer to justice?