At her unknown uncle’s funeral, Yoon Seo-ha meets Kim Young-ho, a man claiming to be her half brother. Meanwhile, detective Choi Sung-jun chases new leads.

Seo-ha's attempts at intimidating Young-ho go awry. Sung-jun and Sang-min track down a stranger who may be connected to the killings.

Confronted with the shocking truth about the burial ground, Seo-ha finds herself in peril — and she must devise a last-ditch effort to save herself.