Detective Oh discovers a secret while he investigates Yang Dal Soo’s murder case, with Attorney Kim Jung Yub. Son Suk Jin leaves a treasure map to his daughter, Ji Hye, when he faces death wiping out communist guerrillas hiding in Jiri mountain. Captain of the communist commandos, Kang Man Ho rapes Ji Hye and she gets pregnant. Hwang Ba Woo helps her and they run from the communists. They get married and look for the treasure together. Ba Woo stabs Dong Ju and turns himself in, but Dal Soo makes it look like Dong Ju is dead in order to take the treasure and Ji Hye from Ba Woo.
~~ Adapted from the novel “The Last Witness” (최후의 증인) by Kim Seong Jong (김성종).