That summer, we had nothing but youth, dreams, and…each other. But it was also that very summer—a summer carrying the things we hadn't yet completed… Are you ready to meet the version of yourself from those beautiful summer days of youth and continue writing the unfinished story?

At a dance bar, a former soldier and now company director chances upon a hostess whose appearance resembles the young girl that saved his life many years ago in the War.

The film begins with an assassination attempt at the private clinic of psychologist Tran Ngoc Tam. A criminal investigator named Sang is assigned to the case to investigate and delve deeper into criminal psychology. During the process, another murder occurs: the death of Dr. Tam's secretary. Through Tam’s cooperation, Sang uncovers a drug trafficking and manufacturing ring. Assisting Sang in this special task force are Long, a scout from the anti-narcotics unit, and a cabaret dancer named Hang Nga